With its uniquely twisted jaw and sideways-facing teeth, the new species was a relic of an earlier and more experimental time in the evolution of life on Earth. Fossils discovered in Brazil show that ...

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

Chinese paleontologists have discovered the world's oldest complete bony fish fossils, dating back 436 million years ...

Whole skeleton of Dipterus, an extinct lungfish from the middle Devonian period. Specimen (UMMP 16140) from the University of Michigan Museum of Paleontology. ANN ARBOR—If you're reading this sentence ...