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This 250-million-year-old creature may have hibernated like modern animals

The discovery is the earliest evidence of this behavior in vertebrates

This 250-million-year-old creature may have hibernated like modern animals

Hibernation may have a far more ancient history than previously thought. A new study suggests that 250 million years ago, a pig-size, ancient relative to mammals slowed its metabolism during harsh Antarctic winters, The New York Times reports. Lystrosaurus, which translates to “shovel lizard,” had short, stubby tusks that grew in layers similar to tree rings. When researchers…

Lucy Hicks

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