Saturday Citations: A supermassive black hole in the LMC; ozone layer recovery; abstract memory in humans

This week, based on a genetic study, researchers issued a recommendation that bison in Yellowstone National Park should be treated as one large, interbreeding herd. Physicists proposed a new framework that derives gravity from quantum relative entropy, with implications for the past and future evolution of the universe. And a new fossil indicates that an early human relative walked upright, similarly to modern humans.

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