Paleobiologist Christine Hertler says the loss of thick hair made extended periods of exertion possible in our ancestors. Effort generates heat, and sweating dissipates it. But for that to work, the skin has to be free of too much hair.
The camel's hump is perhaps its defining feature. It's not just an anatomical oddity but a brilliant bit of evolution.
Animals that grow a white coat in winter are at risk from predators as summers lengthen and snow cover retreats. But they could evolve faster than you might expect, according to a new study.
Surviving under harsh conditions is one thing. Growing for 1,500 years, building dunes and producing melons is quite another. Meet two plants that have perfected life in the desert.
As some question the ethics of the fur trade, fur will be doubtless a staple in the current season, beginning with the Men's Fashion Week in London on January 6. Jan Tomes explores the practices and the issues at stake.
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