New research is cutting male mammals down to size. While we may think of hulking elephant seal bulls or huge stags, these males appear to be the exception, rather than the rule. A new analysis of more ...

No, birds are not mammals. Rather, they are avians. Mammals are characterized by their milk glands, hair, vertebrae and their birthing of live young (being viviparous), according to Britannica.

After the 25th cloning, harmful genetic mutations built up over the subsequent generations. Read more at straitstimes.com.

Bats, rodents, hedgehogs, and shrews are mammals among the orders that are predicted to have the most undescribed mammals. (Pictured: a bicolored shrew) Werner Korschinsky via Wikimedia Commons under ...

Zebra stripes? Leopard print? Neither were in vogue among the earliest mammals during the Age of Dinosaurs. Early mammals and their close relatives probably sported dark, drab coats from snout to tail ...

The species’ melanosomes—tiny, pigment-filled structures inside hair cells—are hollow, a trait never before seen in mammals ...

Mammal evolution has been flipped on its head, according to new research that suggests marsupials are the more evolved mammals. By estimating how the common ancestor of mammals reproduced and ...

We can study animals from all over the world thanks to science, but what about those that no longer exist? The list of extinct mammals could go on for ages, but each animal has a unique story. With ...

Eric Mack has been a CNET contributor since 2011. Eric and his family live 100% energy and water independent on his off-grid compound in the New Mexico desert. Eric uses his passion for writing about ...

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