Life & Evolution

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wolf fossil jaw

ANCIENT RIFT  DNA from a wolf (fossil jaw shown) that lived in Siberia some 35,000 years ago indicates dogs and wolves split earlier than thought.

California two-spot octopus

SKIN THAT SEES  The California two-spot octopus (hatchling shown) can detect light with just its skin — no eyes or brain necessary — and respond with a color change display.

tokay gecko

A new study finds that ectotherms — cold-blooded creatures like this gecko — may have trouble acclimatizing to global warming, and lizards and insects may have even less capacity for adapting to rising temperatures than do organisms such as fish and crustaceans.

Life & Evolution

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