WASHINGTON (Reuters) - The tusks of a stoutly built plant-eating mammal relative that inhabited Antarctica 250 million years ago are providing the oldest-known evidence that animals resorted to ...

A team of paleontologists has discovered that a 250-million-year-old species of animal called Lystrosaurus likely relied on hibernation to survive back when Antarctica was still part of the ancient ...

A creature that lived 250 million years ago with elephant-like tusks and a "turtle-like beak" is the oldest-known creature to hibernate in order to survive, a newly published study has found. The ...

New evidence suggests the Lystrosaurus species that roamed the Earth with the dinosaurs went into a state of hibernation to survive what is modern day Antarctica. The Lystrosaurus is a mammal-like ...

At a time when Earth was going through massive environmental changes and most species were wiped out by Siberian volcanic eruptions, some animals actually managed to survive the chaos. During this ...

Mass extinctions have radically influenced the history of life on Earth. Will we eventually succumb to such a catastrophe? Perhaps, but, in her new book Scatter, Adapt, and Remember, io9 editor in ...

When faced with the hardship of frigid weather, some animals have a built-in survival mode: sleep. Hibernation-like behavior in the Antarctic Circle may date back 250 million years, new fossil records ...

The highly adaptable lystrosaurus used its constantly-growing tusks to help it forage among ground vegetation and dig for roots and tubers. The species was one of a minority which outlived the ...