The 500 Million Year History of Vertebrates

A crocodiles is an example of a sauropsid, and a rabbit is an example of a mammal.

Once animals began living on land, they began evolving to live in many different environments. Some amniotes developed rougher skin, becoming sauropsids. Other amniotes evolved into mammals, which are animals that can give live birth and nurse their young.

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Is that crocodile about to eat the cute little rabbit? Yikes! Don't they know that they're both related? What traits do these animals share?

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What traits did the crocodile and the rabbit share before they evolved different traits?

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The crocodile and rabbit are both vertebrates, tetrapods, and amniotes.

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