smelling the air with their forked tongue to find their prey. 用分叉的舌头嗅探空气 寻找猎物
it's hard to imagine they once dominated our planet. 很难想象它们曾主宰我们的星球
and allowing it to stay hidden underwater 能够让它在水下隐藏
As it exhales, it creates a bubble that sticks to its water-repellent skin... 当它呼气时 会产生一个气泡 附着在它防水的皮肤上
But skin can also be used to scare off an attacker. 但皮肤也可以用来吓退攻击者
continues to be the secret of their success. 仍然是它们成功的秘诀
For some, their skin has allowed them to become masters of disguise. 对于有些动物来说 皮肤使它们成为伪装大♥师♥
...reptiles have had to adapt to an ever more crowded world. 爬行动物 不得不适应一个越来越拥挤的世界
And the tough, scaly skin that allowed them to conquer the deserts of Pangaea, 使它们征服盘♥古♥大♥陆♥的坚韧鳞片皮肤