它们牙齿的数目都是混合的；宽吻海豚有88颗牙齿，伪虎鲸有44颗牙齿，全齿鲸有66颗。
Their number of teeth is mixed; a bottlenose has 88 teeth, a false killer whale has 44 teeth, and a wholphin has 66.
它们以海狮，海豹，小型齿鲸为食。
They prey mainly on sea lions, seals, and small toothed whales.
小齿鲸据说对别的动物有情感或情绪。
Smaller toothed whales are know for there feelings, or emotions for other animals.
齿鲸主要吃大鱼和海兽。
其它有齿鲸包括宽吻海豚、突吻鲸以及白鲸。
Other toothed whales are the bottlenose, the beaked whale, and the white whale.
座头鲸不像齿鲸亚目鲸或齿鲸，它们是须鲸亚目、无害的大海兽，嘴里只有须鲸板。
Unlike orca, which are odontocetes or toothed whales, humpbacks are mysticetes, harmless leviathans with only baleen plates in their mouths.
粗略地讲，这些动物在生态系统中所占的位置现在被海豚和杀手鲸一类的齿鲸类占据。
Roughly speaking, these animals filled the ecological niches now occupied by toothed cetaceans such as dolphins and killer whales.
作为地球上最大型的齿鲸类，抹香鲸已经被国际自然保护联盟列入了高灭绝风险的野外物种之列。
The largest toothed whales on Earth, sperm whales are listed as vulnerable-or facing a high risk of extinction in the wild-by the International Union for Conservation of Nature.
三人组挖掘出全水栖鲸的部分骨架，比如大如龙王鲸，小如8英尺左右的硬齿鲸（Dorudon）。
The trio excavated partial skeletons of fully aquatic whales like Basilosaurus and the smaller, 16-foot Dorudon.
被禁止沿海捕杀小须鲸的村民不只捕杀海豚，还会转而捕杀不包括在国际捕鲸协会禁令内的齿鲸，这是更为珍惜的鲸类。
As well as going after dolphins, villagers not allowed to hunt the minke whales along the coast have turned to hunting (rarer) toothed whales not covered by the IWC's moratorium.
一旦捕捉到向岸碎浪的轻响，海豚和齿鲸可能会由于那种相对的安静而误以为是深水区，并岸边游去，导致令人痛惜的自杀。
Once shorewards of the breakers cetaceans and odontocetes could interpret relative quite as deeper water, and swim shorewards to their sad suicides.
那时，齿鲸亚目(该目包括海豚、齿鲸、抹香鲸、喙鲸等成员)从古鲸亚目中分离出来，而其中的一些成员，特别是现代海豚的祖先，体型减小，大脑体积增大。
When this split occurred, body sizes for some decreased and brain sizes increased, especially in the ancestors of modern dolphins.
那时，齿鲸亚目(该目包括海豚、齿鲸、抹香鲸、喙鲸等成员)从古鲸亚目中分离出来，而其中的一些成员，特别是现代海豚的祖先，体型减小，大脑体积增大。
When this split occurred, body sizes for some decreased and brain sizes increased, especially in the ancestors of modern dolphins.
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