Science News / RED FISH, BLUE FISH

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Sequencing the dead to save the living: Reviving ancient genomes of long-extinct creatures offers a window into past extinctions—and may help prevent future die outs
No gene is an island: Even as biologists catalog the discrete parts of life forms, an emerging picture reveals that life’s functions arise from interconnectedness
The decider: Informing the debate over the reality of ‘free will’ requires learning something about the lateral habenula
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RED FISH, BLUE FISH

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Neighboring groups of cichlid fish in Africa’s Lake Victoria appear to be splitting into two species. Females whose vision has adapted to red-lit areas prefer red-colored males, while females in blue-lit areas prefer blue-colored males. This could be the first example of speciation due to changes in sense organs.

Credit: Inke van der Sluijs; Ole Seehausen

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