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高速獵食

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Downloaded from
YTS.MX

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和強大的咬力

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Official YIFY movies site:
YTS.MX

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是鯊魚最具代表性的超能力

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但有可能在野外測量

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這種原始的力量嗎?

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有兩位專家想找出答案

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大家都在咬

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利用最新科技

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那是我見過最快的空拍機

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拍攝這些海洋頂級掠食者

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鯊魚來了

14
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但他們得使出全力

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不,別吃它

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而且要快

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上啊 上啊

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他們要測試鯊魚的速度和咬力

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天啊,牠在咬我的蛙鞋

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牠咬住了

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咬得很大力

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他們能揭開鯊魚超能力的真相嗎?

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鯊魚專家和攝影師布洛克麥克西

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和他的團隊來到巴哈馬群島

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他們即將進行一項突破性的新實驗

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在科學家的建議下

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他們將嘗試在野外展示鯊魚的咬力

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而且不是普通的鯊魚

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是世界上最大最強壯的兩種鯊魚

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雙髻鯊

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和虎鯊

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研究咬力是瞭解鯊魚四億多年來

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為何一直是優勢掠食者的絕佳方式

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從鯊魚的咬力就能看出很多端倪

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包括牠如何生活

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以及如何獵食

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每種鯊魚的技巧都有些微不同

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演化成能完美適應

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其獵物和環境的方式

40
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但說到咬力的來源

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我們還有很多不瞭解的地方

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測量自由游動的野生鯊魚

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自主性的咬力

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是一件很困難的事

45
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目前我們大部分的知識

46
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都來自圈養物種

47
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或是電腦模型

48
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但這些結果跟野生鯊魚比起來

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又會是如何?

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唯一能找出答案的方法

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就是讓咬力實驗離開實驗室

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進入海洋實測

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這需要某種程度的技術

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只有鯊魚專家才能做到

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例如布洛克和他的團隊

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鯊魚一直是我生活的一部分

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我在巴哈馬群島長大

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說到跟鯊魚一起潛水

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我知道牠們比我厲害

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一開始確實有恐懼感

61
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但最終演變成一種理解和尊重

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布洛克一直致力於海洋研究計畫

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拍攝和接觸鯊魚

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這項任務將是這些技能的終極考驗

65
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那麼到底要如何測量

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鯊魚們血盆大口的力量?

67
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而且不會因此喪命?

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你必須打造極致的鯊魚耐咬玩具

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由於從來沒有人做過這種東西

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研究團隊特別訂製了一種儀器

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這個設備夠靈敏

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能在野外記錄鯊魚的咬力

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此外還夠堅固,不會在過程中被壓碎

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好,這是咬力測量儀

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我們要讓鯊魚從中間咬一口

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這個設備的末端有一個裝置

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會把信號傳送到這個盒子

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顯示出咬力數據

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在測量儀承受重量時,就會測量咬力

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隨著鯊魚的咬合,儀器會顯示出磅數

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你可以看到我往下壓時

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那是105磅的力量

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這就是我們要鯊魚做的事

84
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然後我們就能評估

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誰的咬力最大

86
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為了確保人類和鯊魚不會受傷

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研究團隊必須格外小心

88
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即使對布洛克這樣的專家來說

89
00:05:00,959 --> 00:05:03,417
要取得讀數也不容易

90
00:05:04,417 --> 00:05:08,083
首先你必須讓動物靠近你所在的地方

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00:05:08,166 --> 00:05:11,250
無論你是水肺潛水員或在船上

92
00:05:11,333 --> 00:05:15,291
然後你得讓鯊魚咬住特定的位置

93
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才能取得有用的數據

94
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在他們尋找雙髻鯊和虎鯊之前

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布洛克和潛水教練小莉

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想用小一點的鯊魚做測試

97
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我們要先在水面上

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用檸檬鯊來測試看看

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我們會試著引誘一隻來咬測量儀

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大家準備好了嗎?

101
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小莉,準備好了嗎? 好了

102
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好吧,大家都在咬

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測量儀加裝了把手

104
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讓布洛克的手

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不會太接近飢餓的鯊魚嘴

106
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雖然體型較小

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但檸檬鯊的牙齒還是很多

108
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咬住了,好恐怖

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有了

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牠咬住了

111
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咬得很大力

112
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小莉,是多少?

113
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讀數是168

114
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看起來不錯

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成功了,他們測到第一個咬力數據

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168磅

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似乎跟之前的實驗室估計值差不多

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(檸檬鯊,168磅)

119
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但對於頂級掠食者來說

120
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這個數字還是出奇地低

121
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勉強跟德國牧羊犬

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170磅的咬力差不多

123
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但這只是暖身而已

124
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他們希望測試的下一種鯊魚

125
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會是個更大的挑戰

126
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這張嘴巴會對咬力測量儀做什麼呢?

127
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雙髻鯊多半在海床上獵食

128
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搜尋魟魚和烏賊

129
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牠們的嘴巴比其他鯊魚小很多

130
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這會影響牠們咬合的力道嗎?

131
00:07:27,959 --> 00:07:29,792
我們在巴哈馬群島的比米尼

132
00:07:29,875 --> 00:07:32,458
這裡大概是全世界最適合

133
00:07:32,542 --> 00:07:34,583
跟無溝雙髻鯊一起潛水的地方

134
00:07:36,542 --> 00:07:39,417
我們要試著引誘雙髻鯊

135
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過來咬儀器一口

136
00:07:43,417 --> 00:07:46,542
這是第一次有人這麼做

137
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可能需要反覆試驗

138
00:07:48,458 --> 00:07:50,709
牠們的嘴巴在身體下方

139
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所以要把裝置調整到

140
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牠們能用力咬下去的位置

141
00:07:54,083 --> 00:07:55,500
會有點困難

142
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布洛克潛到雙髻鯊獵食的海床

143
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鉸口鯊很快就聞到魚餌

144
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但布洛克不是為牠們而來

145
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他是為了...

146
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這傢伙而來

147
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牠來了

148
00:08:27,291 --> 00:08:29,375
這隻雙髻鯊超大隻

149
00:08:29,458 --> 00:08:32,417
很適合我們的咬力測量儀

150
00:08:36,166 --> 00:08:38,291
我要試著餵牠一兩次

151
00:08:38,375 --> 00:08:40,291
讓牠開始習慣我們

152
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透過小心地引導鯊魚的鼻子

153
00:08:45,000 --> 00:08:47,750
布洛克能稍微控制牠們的動作

154
00:08:48,959 --> 00:08:50,458
漂亮的雙髻鯊

155
00:08:50,875 --> 00:08:52,250
牠好大

156
00:08:53,083 --> 00:08:54,625
只有像布洛克這樣

157
00:08:54,709 --> 00:08:57,709
經驗豐富的鯊魚專家

158
00:08:57,792 --> 00:08:58,917
才能嘗試這個動作

159
00:09:01,000 --> 00:09:04,250
他在這片水域潛水近20年

160
00:09:04,333 --> 00:09:05,875
因此他很瞭解這些鯊魚

161
00:09:05,959 --> 00:09:07,875
也知道如何判斷牠們的情緒

162
00:09:09,041 --> 00:09:11,000
牠看起來準備好大展身手了

163
00:09:12,875 --> 00:09:14,375
他們覺得這隻鯊魚適合

164
00:09:14,458 --> 00:09:17,333
但鯊魚對咬力測量儀又有什麼看法?

165
00:09:18,583 --> 00:09:19,583
牠來了

166
00:09:21,500 --> 00:09:23,458
預備...

167
00:09:27,959 --> 00:09:29,875
不,運氣不好

168
00:09:34,917 --> 00:09:36,750
要咬了,預備

169
00:09:43,083 --> 00:09:45,917
牠沒咬測量儀,只是咬餌

170
00:09:46,959 --> 00:09:50,917
(布洛克0分,雙髻鯊1分)

171
00:09:51,875 --> 00:09:54,125
預備,小莉,牠要過來了

172
00:09:55,750 --> 00:09:56,750
看起來不錯

173
00:10:00,750 --> 00:10:04,125
布洛克難以將測量儀放進鯊魚嘴裡

174
00:10:04,208 --> 00:10:07,500
那隻雙髻鯊對布洛克想讓牠咬住的

175
00:10:07,583 --> 00:10:09,875
那一大塊金屬非常警覺

176
00:10:10,792 --> 00:10:11,709
預備

177
00:10:21,792 --> 00:10:26,667
牠只用了一點牙齒咬走牠需要的東西

178
00:10:27,583 --> 00:10:29,166
牠沒有真的咬儀器

179
00:10:32,667 --> 00:10:36,542
雙髻鯊只咬魚餌,不咬測量儀

180
00:10:36,625 --> 00:10:40,208
(布洛克0分,雙髻鯊2分)

181
00:10:40,291 --> 00:10:41,333
我要上去了

182
00:10:48,417 --> 00:10:49,625
不容易

183
00:10:50,208 --> 00:10:54,083
所以...我們本來就知道這會很難

184
00:10:54,166 --> 00:10:58,166
這隻龐大的母雙髻鯊比布洛克聰明

185
00:10:58,917 --> 00:10:59,834
牠很會吃

186
00:10:59,917 --> 00:11:02,917
但一旦你給牠咬力測量儀

187
00:11:03,625 --> 00:11:05,625
牠就變得比我聰明

188
00:11:06,375 --> 00:11:08,375
牠一直乖乖地游過來

189
00:11:08,458 --> 00:11:10,041
靠近咬力測量儀

190
00:11:10,125 --> 00:11:12,458
牠幾乎是用牙齒的尖端

191
00:11:12,542 --> 00:11:14,458
把魚餌咬出來

192
00:11:14,542 --> 00:11:17,041
所以牠沒有咬得很緊

193
00:11:17,834 --> 00:11:19,208
我們會繼續嘗試

194
00:11:27,333 --> 00:11:29,125
鯊魚專家布洛克麥克西

195
00:11:29,208 --> 00:11:32,250
用量身為鯊魚打造的耐咬玩具

196
00:11:32,333 --> 00:11:34,834
來調查鯊魚的咬力

197
00:11:35,583 --> 00:11:37,041
直接從巴哈馬群島

198
00:11:37,125 --> 00:11:39,417
體型最大的鯊魚之一口中

199
00:11:39,500 --> 00:11:41,041
取得測量結果

200
00:11:43,792 --> 00:11:45,125
也就是雙髻鯊

201
00:11:45,500 --> 00:11:46,750
好,預備

202
00:11:48,166 --> 00:11:49,375
這並不容易

203
00:11:49,458 --> 00:11:52,709
但布洛克希望堅持會有回報

204
00:11:56,500 --> 00:11:57,709
好,牠要回來了

205
00:12:00,709 --> 00:12:01,834
咬住了

206
00:12:05,291 --> 00:12:06,458
你測到多少,小莉?

207
00:12:06,542 --> 00:12:09,834
布洛克,上次測到104.7

208
00:12:11,542 --> 00:12:13,542
比較像是輕咬,而不是緊咬

209
00:12:14,667 --> 00:12:16,959
鯊魚在玩弄測量系統

210
00:12:17,041 --> 00:12:20,041
沒用多大力氣就把魚餌叼走

211
00:12:21,083 --> 00:12:22,125
牠過來了

212
00:12:23,959 --> 00:12:25,208
好,準備咬

213
00:12:30,792 --> 00:12:31,834
好,牠咬住了

214
00:12:32,458 --> 00:12:34,208
咬得好,你們測到多少?

215
00:12:35,959 --> 00:12:40,583
讀數很高,505.5

216
00:12:40,667 --> 00:12:43,375
成功了,第一個來自野生雙髻鯊的...

217
00:12:43,458 --> 00:12:45,041
已知咬力讀數

218
00:12:45,458 --> 00:12:46,417
很不錯

219
00:12:48,041 --> 00:12:50,083
這隻11英尺長的雙髻鯊

220
00:12:50,166 --> 00:12:53,000
咬力超過500磅

221
00:12:53,083 --> 00:12:54,166
(雙髻鯊505,檸檬鯊168)

222
00:12:55,917 --> 00:12:57,458
對牠們的獵物來說

223
00:12:57,542 --> 00:13:01,041
就像被兩個職業美式足球員壓扁一樣

224
00:13:03,417 --> 00:13:06,709
但令人驚訝的是,跟其他掠食者相比

225
00:13:06,792 --> 00:13:08,625
這個結果並不算頂尖

226
00:13:13,458 --> 00:13:18,000
動物界咬力最強的動物非灣鱷莫屬

227
00:13:18,083 --> 00:13:21,083
(兩千磅)

228
00:13:21,166 --> 00:13:22,959
河馬的咬力也很強

229
00:13:25,083 --> 00:13:27,333
(1800磅)

230
00:13:27,417 --> 00:13:29,417
如果比較鯊魚和其他動物

231
00:13:29,500 --> 00:13:32,375
會發現牠們其實咬力沒那麼大

232
00:13:32,458 --> 00:13:35,083
如果以同等體型來比較咬力的話

233
00:13:35,166 --> 00:13:37,542
鯊魚的咬力跟其他大型掠食者相比

234
00:13:37,625 --> 00:13:39,917
其實是比較弱的

235
00:13:41,625 --> 00:13:45,000
那麼身為頂級掠食者的鯊魚

236
00:13:45,500 --> 00:13:47,375
有著惡名昭彰的大嘴

237
00:13:47,458 --> 00:13:50,291
怎麼可能不是咬力最大的動物之一?

238
00:13:51,792 --> 00:13:54,166
我們認為鯊魚在同等體型的比較下

239
00:13:54,250 --> 00:13:55,834
咬力不高的原因之一

240
00:13:55,917 --> 00:13:57,375
是因為牠們的牙齒形狀

241
00:13:59,375 --> 00:14:00,583
鯊魚有一種能力

242
00:14:00,667 --> 00:14:02,417
在其他動物身上看不到

243
00:14:04,542 --> 00:14:07,166
我們可以看到鯊魚有很多牙齒

244
00:14:07,250 --> 00:14:09,834
任何鯊魚的嘴裡

245
00:14:09,917 --> 00:14:11,917
隨時都有好幾百顆牙齒

246
00:14:12,000 --> 00:14:14,959
而這些牙齒會持續往前移

247
00:14:15,041 --> 00:14:18,125
取代前面掉落的牙齒

248
00:14:18,208 --> 00:14:21,000
所以鯊魚的嘴巴就像牙齒輸送帶

249
00:14:21,083 --> 00:14:25,542
一隻鯊魚一生中會換成千上萬顆牙齒

250
00:14:28,291 --> 00:14:30,417
由於不斷換牙

251
00:14:30,500 --> 00:14:33,333
牠們的牙齒根本不會真正磨損

252
00:14:35,709 --> 00:14:38,333
每顆牙齒都很鋒利

253
00:14:39,834 --> 00:14:43,375
刀片越鋒利,切割起來就越輕鬆

254
00:14:45,500 --> 00:14:49,709
匕首般的牙齒搭配505磅的力量

255
00:14:49,792 --> 00:14:52,625
這隻雙髻鯊就跟許多鯊魚一樣

256
00:14:52,709 --> 00:14:57,041
咬力足以獵捕魟魚和烏賊等獵物

257
00:14:59,458 --> 00:15:02,083
但研究團隊的任務尚未結束

258
00:15:03,125 --> 00:15:05,250
接下來,他們想看看這個結果

259
00:15:05,625 --> 00:15:06,542
跟巴哈馬群島的

260
00:15:06,625 --> 00:15:08,375
另一種重量級生物比起來如何

261
00:15:10,542 --> 00:15:13,875
這種鯊魚的獵物更難以下嚥

262
00:15:14,583 --> 00:15:17,083
牠是全副武裝的巨大海洋生物

263
00:15:19,834 --> 00:15:21,959
但在布洛克和他的團隊重新整裝

264
00:15:22,041 --> 00:15:23,875
準備進行下一階段的任務時

265
00:15:25,375 --> 00:15:28,041
在加州聖地牙哥外海

266
00:15:28,125 --> 00:15:31,875
有另一種鯊魚超能力即將接受考驗

267
00:15:33,875 --> 00:15:35,208
而且是在野外

268
00:15:36,291 --> 00:15:37,250
那就是速度

269
00:15:40,375 --> 00:15:42,125
尖吻鯖鯊被認為是地球上

270
00:15:42,208 --> 00:15:44,125
速度最快的鯊魚

271
00:15:45,500 --> 00:15:47,333
據估計牠們的最快速度

272
00:15:47,417 --> 00:15:50,834
是時速30到70英里

273
00:15:52,959 --> 00:15:54,166
但到目前為止

274
00:15:54,250 --> 00:15:57,000
還沒有人能夠得到確切的讀數

275
00:16:00,041 --> 00:16:02,000
就像咬力一樣

276
00:16:02,083 --> 00:16:06,083
速度的數據對我們瞭解鯊魚至關重要

277
00:16:06,875 --> 00:16:10,000
這或許能解釋速度如何幫助鯊魚

278
00:16:10,083 --> 00:16:13,041
維持在所有海洋食物鏈的頂端

279
00:16:14,125 --> 00:16:15,250
所以今天

280
00:16:15,333 --> 00:16:18,125
鯊魚攝影師安迪凱薩葛蘭迪

281
00:16:18,208 --> 00:16:21,333
要進行尖吻鯖鯊的速度測試挑戰

282
00:16:23,041 --> 00:16:24,792
面對全世界速度最快的鯊魚

283
00:16:24,875 --> 00:16:27,458
你必須拿出最佳表現,做好準備

284
00:16:28,250 --> 00:16:32,041
安迪有數十年拍攝鯊魚的經驗

285
00:16:32,166 --> 00:16:34,208
他希望他能成功完成

286
00:16:34,291 --> 00:16:36,250
其他人做不到的事

287
00:16:38,500 --> 00:16:41,458
但要跟上全速前進的尖吻鯖鯊

288
00:16:41,542 --> 00:16:43,375
將是他最大的考驗

289
00:16:45,792 --> 00:16:50,333
這是高速進行的海洋科學研究

290
00:16:51,583 --> 00:16:52,792
我們要去那裡嗎?

291
00:16:54,041 --> 00:16:56,291
安迪會需要所有可能的幫助

292
00:16:57,875 --> 00:17:01,834
所以他與當地的船長馬克馬丁合作

293
00:17:04,250 --> 00:17:05,917
我想我們找到地點了

294
00:17:06,917 --> 00:17:08,333
有很多鳥,很多生物

295
00:17:08,417 --> 00:17:09,375
感覺很多鯊魚

296
00:17:09,458 --> 00:17:10,542
對,很多鯊魚

297
00:17:10,625 --> 00:17:12,291
你看過尖吻鯖鯊游多快?

298
00:17:12,375 --> 00:17:13,375
我甚至無法告訴你

299
00:17:13,458 --> 00:17:14,625
如果要你猜猜看呢?

300
00:17:14,709 --> 00:17:15,583
如果用猜的

301
00:17:15,667 --> 00:17:17,500
我會說時速超過40英里

302
00:17:17,583 --> 00:17:19,208
聽起來像漁夫的傳說 好

303
00:17:19,291 --> 00:17:20,542
大家都說看過

304
00:17:20,625 --> 00:17:22,333
尖吻鯖鯊時速70英里的樣子

305
00:17:22,417 --> 00:17:24,166
但其實沒有人真的量過 對

306
00:17:25,208 --> 00:17:27,667
安迪希望能改變這一點

307
00:17:29,083 --> 00:17:31,667
他比大多數人更瞭解尖吻鯖鯊

308
00:17:32,959 --> 00:17:36,000
他希望能因此取得優勢

309
00:17:36,083 --> 00:17:37,500
你看,這裡有一隻尖吻鯖鯊

310
00:17:37,583 --> 00:17:39,542
牠似乎很好奇

311
00:17:39,625 --> 00:17:41,166
牠游向我的蛙鞋

312
00:17:41,250 --> 00:17:43,625
天啊,牠在咬我的蛙鞋

313
00:17:43,709 --> 00:17:47,583
看來我的蛙鞋應該還能用

314
00:17:49,458 --> 00:17:52,417
尖吻鯖鯊和大白鯊屬於同一科

315
00:17:52,500 --> 00:17:55,750
牠們也有那種大鯊魚的脾氣

316
00:17:58,000 --> 00:18:00,709
牠們有一堆銳利的刀片

317
00:18:00,792 --> 00:18:02,000
就是牠們的嘴巴

318
00:18:02,083 --> 00:18:03,333
如果稍有差錯

319
00:18:03,417 --> 00:18:06,208
那就會是很糟糕的一天

320
00:18:07,000 --> 00:18:11,083
安迪將對上凶猛又快速的鯊魚

321
00:18:13,834 --> 00:18:16,875
尖吻鯖鯊天生適應快節奏的生活

322
00:18:19,417 --> 00:18:22,250
牠們的尾鰭提供最大推力

323
00:18:23,709 --> 00:18:26,959
魚雷狀的身軀能減少阻力

324
00:18:28,542 --> 00:18:32,083
魚鰭堅硬,功能如同穩定器

325
00:18:34,834 --> 00:18:38,875
連牠們的鱗片都有能加快速度的脊線

326
00:18:39,083 --> 00:18:42,417
減少阻力,讓速度最大化

327
00:18:44,417 --> 00:18:47,041
雖然尖吻鯖鯊佔有優勢

328
00:18:48,125 --> 00:18:52,000
但所有鯊魚都擁有速度這項超能力

329
00:18:53,041 --> 00:18:55,917
速度對鯊魚來說可能攸關生死

330
00:18:56,000 --> 00:18:57,583
這是非常重要的特質

331
00:18:57,667 --> 00:19:01,792
決定了牠們是否能夠逃離掠食者

332
00:19:01,875 --> 00:19:05,333
是否能夠找到獵物

333
00:19:05,417 --> 00:19:06,291
並生存下去

334
00:19:07,458 --> 00:19:08,917
鯊魚的速度很快

335
00:19:09,000 --> 00:19:11,375
因為牠們的生存得依賴速度

336
00:19:12,625 --> 00:19:14,792
但安迪要如何跟上

337
00:19:14,875 --> 00:19:17,250
速度最快的鯊魚呢?

338
00:19:17,625 --> 00:19:21,208
會很困難,但我還有幾個壓箱寶

339
00:19:30,166 --> 00:19:35,291
當世界最有經驗的鯊魚攝影師之一

340
00:19:35,375 --> 00:19:36,709
跟世界最快的鯊魚比賽

341
00:19:37,125 --> 00:19:38,583
會發生什麼事?

342
00:19:40,208 --> 00:19:41,792
安迪凱薩葛蘭迪

343
00:19:41,875 --> 00:19:44,959
試圖測量尖吻鯖鯊的最快速度

344
00:19:45,041 --> 00:19:47,709
他要將比賽帶到空中

345
00:19:49,333 --> 00:19:52,375
空拍機是測量速度的完美工具

346
00:19:52,458 --> 00:19:54,083
如果能飛到尖吻鯖鯊的上方

347
00:19:54,166 --> 00:19:56,333
應該就能比對出空拍機的速度

348
00:19:56,417 --> 00:19:57,583
和尖吻鯖鯊的速度

349
00:19:58,333 --> 00:19:59,583
安迪的螢幕會顯示

350
00:19:59,667 --> 00:20:02,458
他的空拍機飛得有多快

351
00:20:03,166 --> 00:20:05,834
所以只要他能追蹤到尖吻鯖鯊

352
00:20:05,917 --> 00:20:08,000
並讓牠保持在這個格子內

353
00:20:08,375 --> 00:20:10,458
他就會知道空拍機的速度

354
00:20:10,542 --> 00:20:13,709
和鯊魚的速度完全一致

355
00:20:14,875 --> 00:20:18,500
為了刺激鯊魚全速前進

356
00:20:18,709 --> 00:20:21,417
他們使用一個長得像魚的誘餌

357
00:20:22,417 --> 00:20:25,250
你的任務就是讓牠游得越快越好

358
00:20:27,750 --> 00:20:29,333
三,二,一,開始

359
00:20:35,750 --> 00:20:37,750
釋放視覺目標

360
00:20:41,709 --> 00:20:44,125
計畫聽起來很簡單

361
00:20:44,542 --> 00:20:46,875
但不是每個人都相信會成功

362
00:20:47,417 --> 00:20:49,667
如果有人想用空拍機追逐尖吻鯖鯊

363
00:20:49,750 --> 00:20:51,166
那會非常困難

364
00:20:51,250 --> 00:20:53,917
你必須讓這隻快速移動

365
00:20:54,000 --> 00:20:55,125
又很有效率的鯊魚

366
00:20:55,208 --> 00:20:57,375
待在空拍機的視野中

367
00:20:57,458 --> 00:21:00,625
所以這本身就是一大挑戰

368
00:21:00,709 --> 00:21:02,625
尖吻鯖鯊會游得很快

369
00:21:02,709 --> 00:21:04,875
牠們會游出你的視線範圍

370
00:21:05,250 --> 00:21:06,917
可能瞬間就消失了

371
00:21:09,166 --> 00:21:12,208
如同所有短跑健將,包括人類和動物

372
00:21:12,291 --> 00:21:15,250
一般認為尖吻鯖鯊只有在短程衝刺時

373
00:21:15,333 --> 00:21:17,250
才能達到最高速度

374
00:21:18,000 --> 00:21:21,333
所以這些鯊魚是棘手的目標

375
00:21:21,417 --> 00:21:25,458
牠們能隨時改變速度和方向

376
00:21:26,208 --> 00:21:27,291
尖吻鯖鯊

377
00:21:27,375 --> 00:21:29,417
(時速6英里)

378
00:21:29,500 --> 00:21:30,917
那是一隻大鯊魚

379
00:21:31,000 --> 00:21:32,625
(時速5英里)

380
00:21:32,709 --> 00:21:34,166
好,來了

381
00:21:35,709 --> 00:21:37,125
收線

382
00:21:39,625 --> 00:21:42,041
牠游得很快,你看

383
00:21:44,917 --> 00:21:47,834
速度太快了,一直衝出鏡頭外

384
00:21:50,875 --> 00:21:52,166
好,牠游回來了

385
00:21:52,250 --> 00:21:53,458
(時速7英里)

386
00:21:53,542 --> 00:21:55,417
牠來了...

387
00:21:57,875 --> 00:21:59,875
我追得很辛苦

388
00:22:01,750 --> 00:22:02,875
天啊

389
00:22:04,792 --> 00:22:07,250
為了取得準確的結果

390
00:22:07,333 --> 00:22:09,834
安迪必須讓尖吻鯖鯊待在格子內

391
00:22:09,917 --> 00:22:12,291
直到測量到速度

392
00:22:14,750 --> 00:22:17,083
即使對專業空拍機操作員安迪來說

393
00:22:17,166 --> 00:22:18,792
也是艱鉅的任務

394
00:22:18,875 --> 00:22:20,166
(時速3英里)

395
00:22:20,250 --> 00:22:21,583
好,來吧

396
00:22:23,500 --> 00:22:26,083
鯊魚直接游到船邊

397
00:22:27,166 --> 00:22:30,125
鯊魚衝出鏡頭,我跟不上牠

398
00:22:30,417 --> 00:22:31,583
他們開始明白

399
00:22:31,667 --> 00:22:33,875
為何從來沒有人這麼做過

400
00:22:35,041 --> 00:22:36,125
我就在上方

401
00:22:36,208 --> 00:22:37,208
(時速18英里)

402
00:22:37,291 --> 00:22:39,667
尖吻鯖鯊有優勢

403
00:22:40,959 --> 00:22:43,458
牠們決定比賽的節奏和方向

404
00:22:43,542 --> 00:22:45,333
(時速19英里)

405
00:22:49,375 --> 00:22:52,166
(安迪0分,尖吻鯖鯊1分)

406
00:22:52,250 --> 00:22:54,000
對,這樣不行

407
00:22:54,083 --> 00:22:56,125
我無法跟上尖吻鯖鯊

408
00:22:56,208 --> 00:22:57,834
天啊

409
00:22:58,000 --> 00:22:59,291
沒辦法跟緊牠

410
00:23:04,166 --> 00:23:07,208
尖吻鯖鯊果然名不虛傳

411
00:23:08,959 --> 00:23:10,375
但科學家認為

412
00:23:10,458 --> 00:23:13,166
牠們需要加速是有原因的

413
00:23:14,250 --> 00:23:16,291
尖吻鯖鯊會吃鮪魚這類獵物

414
00:23:17,208 --> 00:23:20,125
鮪魚是海洋中游得最快的魚類之一

415
00:23:20,208 --> 00:23:24,959
鮪魚尾鰭的形狀跟尖吻鯖鯊很像

416
00:23:25,041 --> 00:23:27,583
尖吻鯖鯊演化出特殊的尾鰭形狀

417
00:23:27,667 --> 00:23:31,375
幫助牠們跟獵物一樣快速有效率

418
00:23:32,417 --> 00:23:36,083
當你的食物很快,你就得更快

419
00:23:37,417 --> 00:23:38,583
科學家知道

420
00:23:38,667 --> 00:23:41,542
鮪魚游泳時速可達43英里

421
00:23:43,000 --> 00:23:46,792
這表示尖吻鯖鯊甚至能游得更快

422
00:23:48,250 --> 00:23:50,750
時速可能高達50英里

423
00:23:51,709 --> 00:23:54,750
這種速度在風大的近海環境下

424
00:23:55,166 --> 00:23:57,375
對安迪的空拍機來說可能太吃力了

425
00:23:59,458 --> 00:24:01,917
該出動援軍了

426
00:24:02,000 --> 00:24:04,583
還有額外的腎上腺素

427
00:24:08,083 --> 00:24:11,875
傑夫羅素和他的競速空拍機加入團隊

428
00:24:13,250 --> 00:24:16,208
99,101 天啊

429
00:24:16,625 --> 00:24:19,083
喔...這一定會很好玩

430
00:24:20,208 --> 00:24:22,583
那是我見過最快的空拍機

431
00:24:22,667 --> 00:24:23,917
太不可思議了

432
00:24:24,834 --> 00:24:28,250
這架空拍機不只速度快,還很敏捷

433
00:24:28,750 --> 00:24:31,834
這家空拍機也許有他們追趕尖吻鯖鯊

434
00:24:31,917 --> 00:24:33,542
所需的速度和敏捷性

435
00:24:36,792 --> 00:24:38,709
老兄,這玩意真不可思議

436
00:24:38,792 --> 00:24:40,333
它有多快?

437
00:24:40,417 --> 00:24:42,750
它從0加速到時速80英里

438
00:24:42,834 --> 00:24:44,041
不到一秒鐘 什麼?

439
00:24:44,125 --> 00:24:45,375
你是認真的嗎? 是的

440
00:24:45,458 --> 00:24:48,667
你飛行時可以知道它的速度有多快?

441
00:24:48,750 --> 00:24:51,250
護目鏡裡會顯示數據

442
00:24:51,333 --> 00:24:53,250
告訴我確切的飛行速度

443
00:24:53,333 --> 00:24:55,208
因為有全球定位系統 好

444
00:24:55,291 --> 00:24:56,291
全看你了,兄弟

445
00:24:57,166 --> 00:24:58,750
好,要開始了

446
00:24:58,834 --> 00:25:00,667
三,二,一,出發

447
00:25:03,417 --> 00:25:05,875
天啊,看看那玩意

448
00:25:06,208 --> 00:25:08,667
看看它怎麼飛,可以上下顛倒

449
00:25:11,542 --> 00:25:14,417
這是空拍機界的一級方程式賽車

450
00:25:14,500 --> 00:25:16,041
不可思議

451
00:25:16,458 --> 00:25:19,667
但對上鯊魚界的一級方程式賽車

452
00:25:19,750 --> 00:25:20,875
會有怎樣的表現?

453
00:25:22,083 --> 00:25:23,542
馬克,你看到什麼了嗎?

454
00:25:23,625 --> 00:25:26,875
有一隻從兩百碼外游過來,準備好

455
00:25:30,333 --> 00:25:32,500
好,有鯊魚

456
00:25:32,583 --> 00:25:34,834
是什麼?你看到尖吻鯖鯊了嗎?

457
00:25:35,250 --> 00:25:36,583
看到牠了,對

458
00:25:36,667 --> 00:25:39,458
牠游向釣線,看來牠游向釣線了

459
00:25:40,000 --> 00:25:42,834
競速空拍機能及時就位嗎?

460
00:25:44,333 --> 00:25:47,917
它也許快速敏捷,但這也是有代價的

461
00:25:48,500 --> 00:25:52,417
競速空拍機的設計不利於穩定

462
00:25:52,500 --> 00:25:55,875
更不是設計來追蹤尖吻鯖鯊的

463
00:25:55,959 --> 00:25:56,875
(時速45英里)

464
00:25:56,959 --> 00:26:01,208
要一邊注意鯊魚一邊飛行真的很難

465
00:26:03,166 --> 00:26:04,250
突然間...

466
00:26:09,500 --> 00:26:10,667
(競速空拍機0分,尖吻鯖鯊1分)

467
00:26:10,750 --> 00:26:13,041
比賽會就此結束嗎?

468
00:26:19,458 --> 00:26:22,041
攝影師安迪凱薩葛蘭迪

469
00:26:22,125 --> 00:26:25,500
在尖吻鯖鯊速度測試上遭遇挫敗

470
00:26:30,250 --> 00:26:32,458
我們得繼續嘗試,老兄

471
00:26:32,542 --> 00:26:34,875
我想之前沒人這麼做是有原因的

472
00:26:34,959 --> 00:26:36,542
幾乎不可能辦到

473
00:26:36,625 --> 00:26:37,792
"幾乎"

474
00:26:38,667 --> 00:26:41,542
事實證明,要從空中追上尖吻鯖鯊

475
00:26:41,625 --> 00:26:43,041
是不可能的

476
00:26:45,000 --> 00:26:47,083
所以安迪想出一個新計畫

477
00:26:49,333 --> 00:26:51,291
該來上一堂快速物理課了

478
00:26:52,500 --> 00:26:54,375
如果你無法測量速度

479
00:26:54,458 --> 00:26:57,375
你可以根據距離和時間來計算

480
00:26:59,041 --> 00:27:01,792
概念是這樣的,我做出一把尺

481
00:27:01,875 --> 00:27:04,000
每隔一英尺做標記

482
00:27:04,083 --> 00:27:05,917
我要把這個放在船尾

483
00:27:06,375 --> 00:27:07,667
這樣能算出距離

484
00:27:09,041 --> 00:27:13,083
水流會將150英尺的漂浮尺拉長

485
00:27:14,792 --> 00:27:18,000
讓安迪能測量鯊魚游了多遠

486
00:27:19,166 --> 00:27:23,250
但他還是得記錄過程中所花的時間

487
00:27:24,667 --> 00:27:27,250
因此他要利用空拍機的內建時鐘

488
00:27:27,333 --> 00:27:31,709
在鯊魚沿著尺游動時拍攝和計時

489
00:27:34,125 --> 00:27:35,417
賽道準備好了

490
00:27:35,500 --> 00:27:38,625
但他們還需要一隻尖吻鯖鯊跟著游

491
00:27:40,959 --> 00:27:43,333
安迪的計畫是使用另一架空拍機

492
00:27:43,417 --> 00:27:45,291
沿著釣線拉動誘餌

493
00:27:47,083 --> 00:27:49,000
如果你覺得這聽起來很複雜

494
00:27:49,083 --> 00:27:50,959
事實上也的確如此

495
00:27:52,125 --> 00:27:53,083
你覺得呢?

496
00:27:53,166 --> 00:27:56,083
我喜歡,我覺得你的計畫有點瘋狂

497
00:27:56,166 --> 00:27:58,250
但我覺得有可能行得通

498
00:27:58,333 --> 00:28:00,792
從來沒有人成功記錄過

499
00:28:00,875 --> 00:28:03,500
尖吻鯖鯊確切的最高泳速

500
00:28:04,041 --> 00:28:07,792
但也從來沒有人量身打造過

501
00:28:07,875 --> 00:28:08,834
尖吻鯖鯊賽道

502
00:28:08,917 --> 00:28:11,542
這是天才還是瘋狂?

503
00:28:11,625 --> 00:28:14,417
安迪即將揭曉答案

504
00:28:14,709 --> 00:28:15,625
好了,安迪

505
00:28:16,542 --> 00:28:18,208
來吧 怎麼了?找到了嗎?

506
00:28:18,291 --> 00:28:19,583
牠就在浮標前面

507
00:28:20,083 --> 00:28:21,208
對

508
00:28:23,166 --> 00:28:24,792
絕對是尖吻鯖鯊

509
00:28:24,875 --> 00:28:27,125
多大? 看不出大小

510
00:28:27,208 --> 00:28:28,792
好,出動空拍機

511
00:28:30,500 --> 00:28:31,750
牠還有興趣嗎?

512
00:28:31,834 --> 00:28:33,166
有興趣

513
00:28:33,250 --> 00:28:34,125
好,淨空

514
00:28:34,208 --> 00:28:35,083
一切就緒

515
00:28:35,166 --> 00:28:36,959
三,二,一,發射

516
00:28:37,041 --> 00:28:38,625
一,二,三,起飛

517
00:28:39,208 --> 00:28:41,500
好,你還盯著他嗎?

518
00:28:41,583 --> 00:28:43,500
對,你何不直接回去浮標那裡

519
00:28:43,583 --> 00:28:45,375
等牠游過去

520
00:28:45,458 --> 00:28:47,500
我就在浮標那裡,對準了

521
00:28:47,583 --> 00:28:51,208
一旦你到了那裡,拋餌,沿著釣線跑

522
00:28:52,542 --> 00:28:54,417
好,那隻離開浮標了,放

523
00:28:54,500 --> 00:28:56,792
放... 牠要上來了

524
00:28:59,250 --> 00:29:02,250
牠喜歡,繼續,牠在後面 對

525
00:29:03,709 --> 00:29:05,417
待在那裡

526
00:29:06,667 --> 00:29:09,291
鯊魚必須餓到足以展開追逐

527
00:29:09,375 --> 00:29:11,250
比賽才能開始

528
00:29:11,542 --> 00:29:13,542
牠在看...

529
00:29:15,083 --> 00:29:17,125
我需要衝刺速度

530
00:29:17,333 --> 00:29:18,625
上啊 上啊

531
00:29:18,709 --> 00:29:21,250
牠跑了 好,我要重新設定

532
00:29:21,333 --> 00:29:22,417
好 好,回去

533
00:29:25,375 --> 00:29:26,500
起步錯誤

534
00:29:27,000 --> 00:29:29,083
但安迪準備好再接再厲

535
00:29:29,166 --> 00:29:31,417
好,我重新設定位置了 好

536
00:29:32,333 --> 00:29:34,125
好,我要放了

537
00:29:35,750 --> 00:29:37,125
我看到鯊魚了

538
00:29:39,208 --> 00:29:41,208
好,朝船過來了

539
00:29:41,792 --> 00:29:43,500
沿著釣線跑 好

540
00:29:46,166 --> 00:29:47,542
來了

541
00:29:47,625 --> 00:29:49,458
牠喜歡,牠看到了

542
00:29:49,542 --> 00:29:50,750
比賽開始 開始

543
00:29:50,834 --> 00:29:51,959
我看到了

544
00:29:56,125 --> 00:30:00,417
尖吻鯖鯊瞬間從尺的旁邊游過

545
00:30:03,959 --> 00:30:06,583
但這足以測出速度嗎?

546
00:30:09,583 --> 00:30:10,625
該來上物理課了

547
00:30:14,625 --> 00:30:16,458
多虧了漂浮尺

548
00:30:16,542 --> 00:30:20,125
我們知道尖吻鯖鯊總共游了72英尺

549
00:30:20,208 --> 00:30:22,166
也就是0.01英里

550
00:30:22,250 --> 00:30:24,834
(距離72英尺)

551
00:30:24,917 --> 00:30:26,583
攝影機上的計時器顯示

552
00:30:26,667 --> 00:30:29,291
只花了兩秒鐘

553
00:30:29,375 --> 00:30:31,125
(距離72英尺,時間2秒)

554
00:30:31,208 --> 00:30:34,291
用公式來說,速度就是距離除以時間

555
00:30:34,959 --> 00:30:38,041
也就是說時速將近25英里

556
00:30:40,250 --> 00:30:42,166
幾乎比麥可費爾普斯

557
00:30:42,250 --> 00:30:44,583
個人最佳成績快五倍

558
00:30:45,417 --> 00:30:46,500
太好了

559
00:30:47,834 --> 00:30:50,291
先別高興得太早,安迪

560
00:30:50,375 --> 00:30:52,250
以時速25英里的速度

561
00:30:52,333 --> 00:30:54,250
這隻尖吻鯖鯊是捕不到

562
00:30:54,333 --> 00:30:56,291
時速43英里的鮪魚的

563
00:30:57,834 --> 00:31:00,709
這樣的結果不可能是牠們的最快速度

564
00:31:01,959 --> 00:31:05,417
安迪的誘餌無法激發牠們的胃口

565
00:31:05,500 --> 00:31:10,542
達到尖吻鯖鯊追逐獵物的最快速度

566
00:31:12,500 --> 00:31:14,041
現在我們掌握了技術

567
00:31:14,125 --> 00:31:18,000
所以也許明年再來試試看

568
00:31:18,083 --> 00:31:20,750
在那之前,尖吻鯖鯊的最高速度

569
00:31:20,834 --> 00:31:22,333
仍是未知數

570
00:31:22,417 --> 00:31:24,500
而這次牠們贏得了比賽

571
00:31:26,208 --> 00:31:29,792
試圖揭開這種超能力背後的科學原理

572
00:31:29,875 --> 00:31:32,041
伴隨著許多挑戰

573
00:31:33,458 --> 00:31:34,959
回到巴哈馬群島

574
00:31:35,041 --> 00:31:37,083
布洛克即將發現這點

575
00:31:38,125 --> 00:31:39,583
這場咬力測試

576
00:31:39,667 --> 00:31:42,792
將把他應付鯊魚的技巧推向極限

577
00:31:42,875 --> 00:31:46,125
虎鯊來個不停,就像一條虎鯊輸送帶

578
00:31:52,375 --> 00:31:56,750
虎鯊是地球上最大的掠食性鯊魚之一

579
00:32:02,542 --> 00:32:05,208
牠們的食物種類繁多

580
00:32:06,834 --> 00:32:10,458
鯨魚,鳥類,甚至是其他鯊魚

581
00:32:12,208 --> 00:32:16,166
但有一種美食比其他食物更費工夫

582
00:32:18,709 --> 00:32:20,375
那就是海龜

583
00:32:23,083 --> 00:32:25,083
那麼究竟需要多大的咬力

584
00:32:25,500 --> 00:32:27,959
才能咬碎堅硬的龜殼?

585
00:32:32,458 --> 00:32:33,834
在巴哈馬群島

586
00:32:33,917 --> 00:32:36,583
布洛克和研究團隊即將找出答案

587
00:32:37,917 --> 00:32:40,291
唯有專家才有本事面對

588
00:32:40,375 --> 00:32:42,041
虎鯊的血盆大口

589
00:32:44,583 --> 00:32:48,125
布洛克與這些鯊魚一起潛水近20年

590
00:32:51,083 --> 00:32:53,542
他知道保持安全的最好方法

591
00:32:53,625 --> 00:32:55,542
就是慢慢來

592
00:32:58,166 --> 00:33:01,792
第一次潛水我們不會帶咬力測量儀

593
00:33:02,458 --> 00:33:04,041
我們要看看這裡有什麼虎鯊

594
00:33:04,125 --> 00:33:05,208
然後回到水面上

595
00:33:05,291 --> 00:33:06,583
我們會取得更多支援

596
00:33:06,667 --> 00:33:07,583
以策安全

597
00:33:08,000 --> 00:33:09,750
然後我們會帶上咬力測量儀

598
00:33:09,834 --> 00:33:11,041
能出什麼錯呢?

599
00:33:15,458 --> 00:33:18,083
這個地區被稱為老虎灘

600
00:33:18,500 --> 00:33:21,208
而且的確名不虛傳

601
00:33:22,792 --> 00:33:26,250
這些虎鯊很習慣和潛水員互動

602
00:33:32,208 --> 00:33:36,417
牠們並不害羞,布洛克必須堅守陣地

603
00:33:38,000 --> 00:33:40,166
現在有兩隻虎鯊朝我游過來

604
00:33:41,917 --> 00:33:43,917
鯊魚知道食物放在哪裡

605
00:33:48,417 --> 00:33:49,875
給你一些小點心

606
00:33:53,834 --> 00:33:54,875
沒過多久

607
00:33:54,959 --> 00:33:57,417
其他鯊魚就聞到有免費的食物

608
00:33:59,875 --> 00:34:01,750
而且沒有任何一隻乖乖排隊

609
00:34:04,458 --> 00:34:06,208
牠們甚至不讓我準備好

610
00:34:09,667 --> 00:34:11,208
看看牠有多大隻

611
00:34:16,458 --> 00:34:18,500
牠好像在吃桶子,喔...

612
00:34:20,667 --> 00:34:22,500
如果要說哪個畫面最需要放上

613
00:34:22,583 --> 00:34:24,166
"請勿自行嘗試"的警告

614
00:34:24,834 --> 00:34:26,166
那就是這個了

615
00:34:32,667 --> 00:34:34,709
布洛克控制住情況

616
00:34:34,792 --> 00:34:37,667
引導鯊魚遠離誘餌

617
00:34:37,750 --> 00:34:39,875
幫助牠們冷靜下來放鬆

618
00:34:42,291 --> 00:34:45,417
但這不是布洛克原本希望的簡單測試

619
00:34:49,375 --> 00:34:51,250
新的虎鯊剛剛抵達

620
00:34:52,000 --> 00:34:54,166
現在有三隻虎鯊在攻擊桶子

621
00:34:54,667 --> 00:34:58,375
虎鯊來個不停,就像一條虎鯊輸送帶

622
00:34:59,333 --> 00:35:00,792
鯊魚越多

623
00:35:00,875 --> 00:35:03,417
牠們就越爭著引起布洛克的注意

624
00:35:04,583 --> 00:35:06,166
這裡有四隻虎鯊

625
00:35:07,709 --> 00:35:09,417
虎鯊來個不停

626
00:35:10,333 --> 00:35:12,166
虎鯊不喜歡排隊

627
00:35:12,250 --> 00:35:14,917
所以很多時候會有四隻同時過來

628
00:35:15,000 --> 00:35:16,583
你甚至沒有足夠的手臂

629
00:35:16,667 --> 00:35:18,166
阻止牠們同時靠近你

630
00:35:19,125 --> 00:35:22,083
布洛克身邊有水下安全團隊

631
00:35:22,625 --> 00:35:24,542
但周圍有這麼多鯊魚

632
00:35:25,542 --> 00:35:29,000
要控制住場面還是很困難

633
00:35:29,083 --> 00:35:30,750
下面變得有點瘋狂

634
00:35:33,208 --> 00:35:34,500
我想我們該走了

635
00:35:37,041 --> 00:35:40,166
把食物帶到更開闊的區域

636
00:35:40,250 --> 00:35:43,208
就有更多時間觀察鯊魚從哪裡靠近

637
00:35:43,291 --> 00:35:44,333
並做出反應

638
00:35:53,041 --> 00:35:55,125
各位,現在有好幾隻虎鯊

639
00:35:55,208 --> 00:35:56,750
牠們吃得很香

640
00:35:57,583 --> 00:35:59,834
我想我們該試試咬力測量儀了

641
00:36:02,959 --> 00:36:04,125
好,謝謝

642
00:36:09,458 --> 00:36:12,458
如果這些鯊魚能咬穿龜殼

643
00:36:13,583 --> 00:36:15,709
牠們又會對咬力測量儀做什麼呢?

644
00:36:22,166 --> 00:36:24,667
好,我要給牠們咬力測量器

645
00:36:25,250 --> 00:36:26,250
來了

646
00:36:27,333 --> 00:36:29,333
好,預備

647
00:36:29,417 --> 00:36:30,375
收到,布洛克

648
00:36:35,250 --> 00:36:38,375
對,牠沒有真的...牠只是含住而已

649
00:36:38,458 --> 00:36:39,458
有讀數嗎?

650
00:36:40,083 --> 00:36:42,458
沒有,布洛克,沒有讀數

651
00:36:43,458 --> 00:36:44,542
好,來吧

652
00:36:44,625 --> 00:36:46,291
要來了,預備

653
00:36:53,375 --> 00:36:54,333
沒用

654
00:36:55,875 --> 00:36:57,750
好,我有足夠的空氣再試一次

655
00:36:58,667 --> 00:37:00,000
好,我再試一次

656
00:37:00,500 --> 00:37:04,041
牠要轉彎了,牠要朝我過來,預備

657
00:37:08,542 --> 00:37:09,709
咬住了

658
00:37:13,375 --> 00:37:15,750
看起來很有希望,直到...

659
00:37:17,166 --> 00:37:19,375
一隻檸檬鯊跑來攪局

660
00:37:24,709 --> 00:37:27,083
纜線被檸檬鯊咬斷了

661
00:37:34,083 --> 00:37:35,375
在巴哈馬群島

662
00:37:35,458 --> 00:37:39,041
咬力測量儀在他們得到讀數前就壞了

663
00:37:41,041 --> 00:37:43,917
一隻檸檬鯊咬住了纜線

664
00:37:44,000 --> 00:37:45,709
纜線被咬斷了

665
00:37:50,667 --> 00:37:51,709
這是一次挫敗

666
00:37:51,792 --> 00:37:54,458
但鯊魚專家和攝影師布洛克

667
00:37:54,542 --> 00:37:56,667
認為纜線可以重新連接

668
00:37:57,208 --> 00:37:59,917
如你所見,我一直在修理纜線

669
00:38:00,000 --> 00:38:01,375
一隻檸檬鯊游過來

670
00:38:04,583 --> 00:38:07,333
纜線鉤到牠的一顆小牙齒

671
00:38:07,417 --> 00:38:09,375
纜線就被咬斷了

672
00:38:11,250 --> 00:38:13,208
我們要再潛下去,試著取得更多讀數

673
00:38:20,375 --> 00:38:24,166
他們還沒取得這裡的大虎鯊

674
00:38:24,458 --> 00:38:26,875
難以掌握的第一次咬力數據

675
00:38:29,166 --> 00:38:31,208
修補過的纜線能撐得夠久

676
00:38:31,291 --> 00:38:33,083
讓鯊魚真正上鉤嗎?

677
00:38:36,208 --> 00:38:37,959
現在有九隻虎鯊

678
00:38:41,959 --> 00:38:43,417
鯊魚來了

679
00:38:47,458 --> 00:38:48,625
牠在咬

680
00:38:52,542 --> 00:38:53,917
你的讀數如何?

681
00:38:54,000 --> 00:38:55,458
咬得很大力

682
00:38:55,583 --> 00:38:58,291
收到,布洛克,讀數449.5

683
00:38:58,375 --> 00:38:59,375
咬得超好

684
00:39:02,500 --> 00:39:04,333
第一次咬合結果還不錯

685
00:39:04,417 --> 00:39:06,750
但布洛克認為這些海龜獵手

686
00:39:06,834 --> 00:39:09,875
能力不僅如此,所以他繼續下去

687
00:39:11,458 --> 00:39:12,917
但由於纜線很脆弱

688
00:39:13,000 --> 00:39:16,500
他必須格外小心,免得被虎鯊扯斷

689
00:39:17,959 --> 00:39:20,709
然而過來的虎鯊越來越多

690
00:39:22,709 --> 00:39:24,500
下面亂成一團

691
00:39:25,709 --> 00:39:28,709
我想現在有四,五隻,來個不停

692
00:39:31,208 --> 00:39:34,417
很大隻很大隻的母鯊

693
00:39:36,500 --> 00:39:37,792
有兩隻來了

694
00:39:38,834 --> 00:39:40,834
好,預備

695
00:39:40,917 --> 00:39:41,959
咬合時間

696
00:39:46,458 --> 00:39:47,417
咬得好

697
00:39:47,500 --> 00:39:49,125
絕對有咬到

698
00:39:49,208 --> 00:39:50,875
300,400,500

699
00:39:51,500 --> 00:39:54,458
520,549.5

700
00:39:54,542 --> 00:39:56,083
真酷

701
00:39:56,166 --> 00:40:00,208
任何不幸被這個嘴巴夾住的生物

702
00:40:00,291 --> 00:40:03,625
就像被一輛重機的重量壓到

703
00:40:04,208 --> 00:40:05,917
預備,小莉

704
00:40:07,583 --> 00:40:09,583
牠來了,過來了

705
00:40:09,667 --> 00:40:11,083
這些母鯊真大隻

706
00:40:12,667 --> 00:40:14,208
咬得很大力

707
00:40:17,375 --> 00:40:19,959
剛才那一咬很紮實

708
00:40:20,041 --> 00:40:21,125
有讀數嗎?

709
00:40:21,208 --> 00:40:24,208
我們偵測到超過600

710
00:40:25,333 --> 00:40:28,834
彷彿被自動販賣機壓扁般的一口

711
00:40:29,834 --> 00:40:32,000
創下至今最高紀錄

712
00:40:32,542 --> 00:40:34,250
他勢如破竹

713
00:40:34,333 --> 00:40:37,625
鎖定鯊魚群中最大的鯊魚

714
00:40:38,500 --> 00:40:40,041
這是隻巨獸

715
00:40:41,041 --> 00:40:42,125
牠要過來咬了

716
00:40:45,375 --> 00:40:46,542
咬得好

717
00:40:52,125 --> 00:40:53,750
你們有偵測到讀數嗎?

718
00:40:54,291 --> 00:40:57,792
布洛克,剛剛那次的咬合讀數

719
00:40:57,875 --> 00:40:59,166
是864

720
00:41:04,375 --> 00:41:05,625
(布洛克1分,虎鯊0分)

721
00:41:11,250 --> 00:41:13,375
這隻九英尺長的虎鯊

722
00:41:13,458 --> 00:41:17,125
施展出864磅的咬力

723
00:41:17,208 --> 00:41:19,750
相當於一架平台鋼琴的重量

724
00:41:21,500 --> 00:41:22,875
這是史上第一次

725
00:41:22,959 --> 00:41:25,208
測得野生虎鯊的咬力讀數

726
00:41:25,667 --> 00:41:27,667
這是一大成就

727
00:41:28,291 --> 00:41:29,375
沒有比這更讚的了

728
00:41:30,667 --> 00:41:33,709
但研究團隊的結果還有一個驚人之處

729
00:41:35,417 --> 00:41:38,208
他們測試的雙髻鯊身長11英尺

730
00:41:38,291 --> 00:41:39,875
(雙髻鯊,11英尺)

731
00:41:39,959 --> 00:41:42,583
擁有505磅的咬力

732
00:41:42,667 --> 00:41:43,500
(雙髻鯊,11英尺,505磅)

733
00:41:45,458 --> 00:41:47,834
虎鯊身長九英尺

734
00:41:47,917 --> 00:41:49,959
(虎鯊,9英尺,864磅)

735
00:41:50,041 --> 00:41:52,166
但咬力卻有864磅

736
00:41:52,250 --> 00:41:56,166
比雙髻鯊高出七成

737
00:41:57,959 --> 00:42:00,417
明明身長短了兩英尺

738
00:42:01,750 --> 00:42:04,834
但咬力的差異又該如何解釋?

739
00:42:08,333 --> 00:42:12,166
科學家認為咬力不只關係到體型

740
00:42:12,917 --> 00:42:15,917
雖然大隻的鯊魚的咬力很強

741
00:42:16,000 --> 00:42:19,250
但咬力還歸結於其他幾個因素

742
00:42:20,667 --> 00:42:22,458
其中一項就是食物

743
00:42:25,291 --> 00:42:27,625
虎鯊以海龜為食

744
00:42:29,542 --> 00:42:34,417
這種食物需要蠻力與殺手般的技巧

745
00:42:35,166 --> 00:42:36,333
虎鯊是很好的例子

746
00:42:36,417 --> 00:42:38,291
說明了動物的生理構造

747
00:42:38,375 --> 00:42:40,417
以及牠的行為如何發揮作用

748
00:42:41,458 --> 00:42:44,208
這些鯊魚不僅有更寬的下顎

749
00:42:44,291 --> 00:42:47,125
和更具抓力的牙齒能纏住龜殼

750
00:42:49,166 --> 00:42:52,458
牠們還演化出能咬穿龜殼的技巧

751
00:42:53,458 --> 00:42:56,542
虎鯊會來回甩頭

752
00:42:56,625 --> 00:42:59,667
左右甩動,把牙齒當成鋸子

753
00:43:00,834 --> 00:43:03,709
對這些鯊魚來說,晚餐得來不易

754
00:43:05,917 --> 00:43:08,875
而雙髻鯊則採取更簡單的做法

755
00:43:08,959 --> 00:43:10,083
咬住就吃

756
00:43:11,500 --> 00:43:14,083
這種"一口咬下"的策略

757
00:43:14,166 --> 00:43:15,959
不需要那麼多的力量

758
00:43:17,250 --> 00:43:19,792
也不需要很大的顎部

759
00:43:21,500 --> 00:43:23,250
這種行為可以解釋

760
00:43:23,333 --> 00:43:25,000
為什麼體型較小的虎鯊

761
00:43:25,083 --> 00:43:28,500
咬力比體型更大的雙髻鯊還大

762
00:43:32,750 --> 00:43:36,417
研究咬力是瞭解動物的生理構造

763
00:43:36,542 --> 00:43:38,583
以及牠們在環境中的行為之間

764
00:43:38,667 --> 00:43:40,250
有何關聯的有用方法

765
00:43:40,333 --> 00:43:44,458
這些關係是經過長時間的演化

766
00:43:44,542 --> 00:43:46,000
所以咬力能幫助我們瞭解

767
00:43:46,083 --> 00:43:49,125
鯊魚長久以來為何是優勢掠食者

768
00:43:49,792 --> 00:43:51,333
咬力和速度是幫助鯊魚

769
00:43:51,417 --> 00:43:55,041
稱霸幾乎所有海洋的技能

770
00:43:55,125 --> 00:43:57,709
透過測試咬力和速度

771
00:43:57,792 --> 00:43:59,500
科學家們發現

772
00:43:59,583 --> 00:44:04,125
最偉大的超能力可能是適應力

773
00:44:05,333 --> 00:44:07,834
這才是最極致的演化生存技能

774
00:44:07,917 --> 00:44:09,500
謝謝觀賞