LOS ANGELES — Scientists have made a groundbreaking discovery about the origins of the human outer ear, revealing that this distinctive mammalian feature evolved from an unexpected source: fish gills.

A genetic study shows how human breeding choices influence ear length in dogs and why those traits persist across breeds.

Unlike birds and amphibians, mammals can't recover lost hearing. In people, the cells of the inner ear responsible for detecting sound and transmitting those signals to the brain form during early ...

An international team of palaeontologists has made a significant discovery in fossils that offer key information about the evolutionary shift from the jaw joint bones to those of the middle ear in ...