To figure out how dinosaurs walked, start with how they didn't

Paleontologists have made great strides in understanding how extinct animals like dinosaurs walked, ran, swam and flew when they were aliveā€”but much about the mechanics of how different species moved remains uncertain. ...

Water-to-land transition in early tetrapods

The water-to-land transition is one of the most important and inspiring major transitions in vertebrate evolution. And the question of how and when tetrapods transitioned from water to land has long been a source of wonder ...

Loss of land-based vertebrates is accelerating, study finds

In 2015, Stanford biologist Paul Ehrlich coauthored a study declaring the world's sixth mass extinction was underway. Five years later, Ehrlich and colleagues at other institutions have a grim update: the extinction rate ...

Bird with unusually long toes found fossilized in amber

Meet the ancient bird that had toes longer than its lower legs. Researchers have discovered a bird foot from 99 million years ago preserved in amber that had a hyper-elongated third toe. The study, published in the journal ...

page 1 from 23