For more than a century, paleontologists have been piecing together how the mysterious predator Andrewsarchus is related to ...

Fossil tooth lodged in skull helps reconstruct final moments of giant dinosaur that became prey - Researchers say finding indicates duckbilled plant-eating dinosaur was killed by a T rex ...

Tiny marine creatures called conodonts, extinct for millions of years, held the title for the sharpest teeth. These eel-like ...