From the 20-foot-long jawbones of the filter-feeding blue whale to the short, but bone-crushing, jaws of the hyena and the delicate chin bones of a human, the pair of lower jawbones characteristic of ...

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 ...

The 165-million-year-old fossil of a tiny, shrew-like animal shows the earliest example of modern hyoid bones—the ones that provide the ability to swallow food—in mammal evolution. The hyoid bones of ...

Despite being mammals, these remarkably cancer-resistant animals share a lot in common with cold-blooded species.

Mammals keep evolving into anteaters, eating only ants and termites, at least 12 times since the age the dinosaurs.

This story was updated at 11:00 AM June 1 The basic decision-making circuitry underlying social behaviors such as fighting and mating is incredibly similar in all vertebrates, from fish to mammals, ...

Paleodietary studies of the fossil record are impeded by a lack of reliable and unequivocal tracers. Scientists have now tested a new method, the isotope analysis of zinc isotopes from the tooth ...