Why meat-eating dinosaurs like T. rex evolved tiny arms

The evolution of tiny arms in several groups of meat-eating dinosaurs was likely driven by the development of strong, powerful heads, which were used to attack prey, according to a new study led by researchers at UCL (University ...

Why are some people mosquito magnets? Clues are emerging

Ever felt like mosquitoes bite you while ignoring everyone else? Scientists are now making progress in deciphering the complex chemical cocktail that makes particular people more enticing to these disease-spreading bloodsuckers.

Chimpanzees' unusually protracted and vulnerable adolescences

For all the diversity of the human condition, one experience is almost universally painful: adolescence. It's also unusual. Most other species pass from puberty to adulthood quickly, but humans linger for years in a transitional ...

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