Why are we so divided? Zero-sum thinking is part of it

A recent working paper charts the surprising politics of zero-sum thinking—or the belief that one individual or group's gain is another's loss—with a goal of offering fresh insight into our nation's schisms.

Stressed-out young oysters may grow less meat on their shells

Early exposure to tough conditions—particularly warmer waters and nightly swings of low oxygen—could leave lasting scars on oysters' ability to grow meaty tissue. A team of biologists at the Smithsonian Environmental ...

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