Genes & Cells

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eyelid

EYE-OPENER  Normal skin is a patchwork of cells, many of which carry cancer-driving mutations, a new study finds. In a representation of normal skin, colors indicate the mutated genes and circles reflect the size of skin patches from healthy eyelids carrying the mutation.

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.

Genes & Cells

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