News
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AnthropologyCannibalism’s DNA Trail: Gene may signal ancient prion-disease outbreaks
Cannibalism among prehistoric humans may have left lasting genetic marks.
By Bruce Bower -
EcosystemsAt a Snail’s Place: Rock climbing cuts mollusk diversity
As rock climbing soars in popularity, some cliff-side snail populations may be crashing.
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AnimalsCostly Sexiness: All that flash puts birds at extra risk
Distinctive his-and-her plumages increase the chance that a bird species will go extinct locally, according to an unusually far-ranging study.
By Susan Milius -
AstronomyOnce Upon a Time in the Cosmos: Using distant galaxies to study the early universe
Peering far back in time, two teams of astronomers report that they have found some of the universe's earliest galaxies.