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Body & Brain

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wolf pup

SAVING THE WOLVES  With less land to roam and dogborne diseases closing in, Ethiopian wolves stand on the ledge of extinction.

hand holding pill

GO LOW  A prototype male birth control pill caused reproductive hormones in men to plummet to levels known to halt sperm production.

progenitor cells

BYE BYE BUDS  Mice that became obese on a high-fat diet (right) lost a quarter of their taste buds (stained red) and also had fewer progenitor cells (stained green) — which give rise to new taste buds — than mice of a healthy weight on a regular diet (left).

Body & Brain

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