What is it about the way mammals are born, and reared, that makes them unique in the animal kingdom? Learn the major characteristics that make a mammal, a mammal.
- Mammals are warm-blooded vertebrates.
- Mammals secrete milk to feed their young.
- Mammals have hair.
- Mammals have a single jawbone, a single cardiac artery and three ear bones.
All mammals are warm-blooded vertebrates.
The ability to keep a constant internal temperature was a pivotal step in their evolution, and their success.
But this also evolved separately in birds.
So what are the unique features that set mammals apart from all other animals?
The very name 'mammal' comes from one of ...
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