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Sperm whales form close family units for protection and to nurture their offspring.
抹香鲸形成亲密的家庭单元来保护自己并且养育它们的后代。
Great white sharks relate only during mating and will actually eat their young.
大白鲨只有在交配时才相互联系而且会吃掉自己的后代。
Forensic science will reveal how this starkly different behavior played out in the prehistoric seas.
法证科学会揭示这种完全不同的行为在史前海洋里会有何结果。
The Megalodon was the most powerful shark ever to roam the seas.
巨齿鲨是在海洋中游弋过的最强有力的鲨鱼。
Its jaws were made of cartilage, not bone, which gave them incredible flexibility without sacrificing strength.
它的双颌由软骨构成而不是骨头，这让它们有非同寻常的柔韧性同时又不会损失强度。
A recent study performed in Sydney, Australia revealed that the Megalodon had the most powerful bite of any animal in earth's history.
最近一项澳大利亚悉尼的研究表明了巨齿鲨拥有在地球历史上最强大的咬合力。
Can you image what it would have been like to see these two deep sea monsters going head to head in an all out battle to the death?
你能想象这两种深海怪兽针锋相对地展开全力的生死搏斗会是什么样吗？
It would have been absolutely terrifying to think about.
这场面想来绝对会惨烈无比。
Well, we can't possibly know everything that would have occurred, but we can certainly propose a realistic scenario, based on the behavior of their modern counterparts.
我们不可能了解到发生的每一件事情，但我们肯定能提出一种真实的场景，根据它们现代变体的行为。
Megalodon basically was an oversized Great white shark.
巨齿鲨基本就是超大版的大白鲨。
So we can feel pretty sure that it behaved the same way.
所以我们基本能确定它们有相同的行为。
Brygmophyseter was a sperm whale with a bad attitude and a nasty set of teeth.
四贺鲸是一种脾气不好、还有一嘴可怕的牙齿的抹香鲸。
And so we can look at modern sperm whales and sort of add the extra teeth and the nasty disposition, and we have a good idea of what the whale was like.
所以我们能够观察现代抹香鲸，然后再加上额外的牙齿和可怕的性情，然后我们对这个鲸是什么样的就有了主意。
Then you throw the two together and you get the heck out of the way.
然后在把两种放在一起，然后你就赶快跑开就行了。
So when you see a recreation of this battle, it may not be the only way the fight took place, but it definitely is rooted in as many facts as we have available.
当你看到对这场战斗的重建时，这可能不是它们争斗的唯一方式，但这的确是基于我们所知道的许多事实。
Few creatures on land or sea could match the Megalodon in force.
无论是陆地还是海里的生物力量上没几个能与巨齿鲨媲美。
Compared to the Megalodon's bite force of 20 tons, the T-rex had a bite force of just over three tons.
跟巨齿鲨二十吨的咬合力相比，霸王龙的咬合力才三吨。
Megalodon was an enormous shark, our estimates based on the preserved teeth are that a really big Megalodon would have been in excess of 50 feet long.
巨齿鲨是一只庞大的鲸鱼，根据保存下来的巨齿鲨牙齿我们估计一条很大的巨齿鲨体型会超过50米长。
which is the size basically of a big humpback whale, or the length of a humpback whale.
基本和较大的座头鲸相当，其长度和座头鲸差不多。
And would've weighed many, many, many tons.
它的重量会是好多好多吨。
