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This Weird Creature Is The First We Know of That Hibernated – 250 Million Years Ago – ScienceAlert

Animals have been hibernating for a long, long time, a new study shows. Researchers have analysed 250 million-year-old fossils and found evidence that the pig-sized mammal relation, a genus called Lystrosaurus, hibernated much like bears and bats d

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Animals have been hibernating for a long, long time, a new study shows. Researchers have analysed 250 million-year-old fossils and found evidence that the pig-sized mammal relation, a genus called Lystrosaurus, hibernated much like bears and bats do today.
Finding signs of shifts in metabolism rates in fossils is just about impossible under normal conditions but the stout, four-legged Lystrosaurus had a pair of tusks that grew continuously during its life, leaving behind a record of activity no…

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