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Life & Evolution

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Daspletosaurus horneri tyrannosaur

FEELIN’ FINE  The coarse skull bones of the newly identified Daspletosaurus horneri (top left) hint that the tyrannosaur had sensory organs in its skin, seen as black dots on the snout scales in this illustration.   

mosquito wing rotation

BIZARRE BUZZ  High-speed video and computer modeling detail forces involved in mosquitoes’ wing rotation that help the insects generate enough lift (lines indicate air flow) to support their body weight in the air.

guppies

LIKES FLASHY GUYS  Brain size in a female guppy (left) turns out to affect her taste in males. Bigger brains go with a preference for a colorful guy (right) instead of some dim dud.

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