Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Mammals are defined by how and what we eat every single day of our ...

If you're reading this sentence, you might have a fish to thank. Fish were the first animals to evolve jaws. They use their jaws primarily to eat, but also for defense, as tools—such as to burrow or ...

A groundbreaking study has shed light on how lizards and snakes -- the most diverse group of land vertebrates with nearly 12,000 species -- have evolved remarkably varied jaw shapes, driving their ...

A sea lamprey, which has no jaw, has the genetic code to do so, CU researchers find. Photo by Jeff Mitton A half-billion years ago, vertebrates lacked the ability to chew their food. They did not have ...

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 ...