Life & Evolution

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Ethiopian highlands

Over millenia, humans have adapted to the high altitude of Ethiopia's highlands. Researchers have now pinpointed one adaptation — lower levels of cardiac signaling protein — that may make the high life possible.

Japanese black bears

Japanese black bears live in forested regions of Honshu and Shikoku. The bears are “ecosystem engineers,” a new study claims, because when they break tree branches, the gaps allow light to reach other plants.

little boy taking medicine

A study in mice show long-lasting effects from courses of antibiotics early in life.

Life & Evolution

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