#FossilFriday: This 250-million-year-old animal could enter hibernation-like states
Lystrosaurus may be the oldest hibernating vertebrate in the fossil record.
Lystrosaurus may be the oldest hibernating vertebrate in the fossil record.
We're not all that different from the creatures with whom we share and have shared this planet.
It's a great way to spend an afternoon or a day off.
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