Picture this: you’re a scientist digging near the Amazon rainforest, and you pull a jawbone out of the ground that looks so ...

Even with only jaws, Tanyka amnicola adds a new character to an ancient ecosystem that scientists are still trying to sketch ...

"It's a really strange animal, and the weird twist in the jaw drove us crazy trying to figure it out." ...

Paleontologists surveying a dry riverbed in northeastern Brazil repeatedly encountered the same type of fossil: a lower jaw about six inches long, curved and thick, and twisted in an unexpected way. A ...