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AxialGem t1_j6kjjnr wrote

Reply to comment by teastain in All of us have direct ancestors who survived 5 global mass extinctions and outlived the dinosaurs by Arinupa

>one heart, two lungs, four limbs

That's the ancestral condition for all tetrapods, not just mammals of course :p

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FindorKotor93 t1_j6kqez6 wrote

Yup, the mammal template by this point was Warm Blood, Specialised Teeth, legs below plane of body.

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I-dont-rickroll t1_j6md6ac wrote

Warm blood and fetus that grow in their belly, you forgot this part.

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FindorKotor93 t1_j6n2oqm wrote

I don't know why you're getting downvoted, but yes I did forget live birth.

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