A plantation worker photographed this new genus of mammal in New Guinea, thought to have been dead for 6,000 years.
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 ...
According to a new study, the first louse to take up residence on a mammalian host likely started out as a parasite of birds. That host-jumping event tens of millions of years ago began the long ...
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 picture biodiversity, they often ...
Monotremes are mammals that lay eggs and do not carry their young in a womb. They include species like the platypus and echidnas. Egg-laying monotremes may have retained certain traits from their ...
Illustration showing Repenomamus robustus as it attacks Psittacosaurus lujiatunensis moments before a volcanic debris flow buries them both, ca. 125 million years ago. (Michael Skrepnick via ...
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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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