Resting postures determined by animals' size

Cows always rest on their chests so that their digestion is not impaired. Rodents sometimes rest sitting down, while kangaroos sometimes lie on their backs. The larger the animal, the less often it lies down, and when it ...

How to hunt a giant sloth—according to ancient human footprints

Rearing on its hind legs, the giant ground sloth would have been a formidable prey for anyone, let alone humans without modern weapons. Tightly muscled, angry and swinging its fore legs tipped with wolverine-like claws, it ...

Non-avian dinosaur found to have laid blue eggs

(Phys.org)—A team of researchers from Germany and the U.S. has found that a non-avian dinosaur living in what is now China laid colored eggs. In their paper published on the peer-reviewed site PeerJ, the team describes ...

How dinosaurs learned to stand on their own two feet

Paleontologists at the University of Alberta have developed a new theory to explain why the ancient ancestors of dinosaurs stopped moving about on all fours and rose up on just their two hind legs.

Sauropod swimmers or walkers?

An international team of scientists, led by the China University of Geosciences in Beijing and including palaeontologists from the University of Bristol, has shed new light on some unusual dinosaur tracks from northern China. ...

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