Lystrosaurus was a dog-sized animal that thrived in the early Triassic Period and looked like a cross between a pig and a lizard
Some 250 million years ago, a Seussian-looking beast with clawed digits, a turtle-like beak and two tusks may have survived Antarctica’s chilly winters not by fruitlessly foraging for food, but by curling up into a sleep-like state, meaning it may be the oldest animal on record to hibernate.
“The genus survived the planet’s largest mass extinction”