Chickens were included to represent egg-laying animals, such as extinct reptiles, that passed on much of their DNA to the platypus and other mammals in the course of evolution.
鸡被作为卵生动物的代表，一些已经灭绝的爬行动物可能在进化过程中将基因传给了鸭嘴兽和其他哺乳类。
Tens of thousands of fungal species infect reptiles, amphibians and other cold-blooded animals, but only a few hundred harm mammals.
数以万计的真菌都能够感染爬行动物、两栖动物和其他冷血动物，但只有其中的几百种才对哺乳动物构成威胁。
Those other first animals tended to their young, as do most of their descendants, such as birds, reptiles, and mammals, which still bring their young food and fight to protect them.
从第一只动物到其逐渐进化而成的后裔，如鸟、爬行动物和哺乳动物，都把抚养后代视为头等大事，它们为年轻的下一代殚心竭虑，关怀备至，操碎了心；
There were also exotic pets, reptiles and a variety of other wild animals.
还有一些奇形怪状、颜色各异的宠物、爬行动物和各种各样的其他野生动物。
Vector animals, insects, birds, pets, reptiles, and other vector library for free download.
矢量动物精灵608矢量动物，昆虫，鸟类，宠物，爬行动物等矢量图库免费下载。
Vector animals, insects, birds, pets, reptiles, and other vector library for free download.
矢量动物精灵608矢量动物，昆虫，鸟类，宠物，爬行动物等矢量图库免费下载。
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