Mammals are not especially diverse. Roughly 6,800 mammal species are known to exist, compared with about 8,800 species of amphibian, 11,000 species of bird and 12,500 of reptile. Yet when most people ...
From the formation of inner ear bones to the rise of hair to cover our bodies, these developments made us distinct from other animals Riley Black - Science Correspondent By examining the fossils of ...
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Why aren't mammals as colorful as reptiles, birds or fish?
Many mammals have fur the color of brown and black. Why don't they have more exotic colors, like purple and neon pink?
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