From deep growls rolling over savannas to haunting whale songs drifting through the ocean, many species rely on sound to stay ...

Pantolambda bathmodon, a stocky, now-extinct mammal, lived 62 million years ago and reached roughly 92 lbs in adulthood, which was a much larger size than most mammals that came before. Video credit: ...

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.

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 ...

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

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 ...

Study shows human-derived H5N1 spreads more easily through contact than animal strains, raising concerns about adaptation in ...

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

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 ...

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