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 ...

The 165-million-year-old fossil of Microdocodon gracilis, a tiny, shrew-like animal, shows the earliest example of modern hyoid bones in mammal evolution. The 165-million-year-old fossil of ...