Gills and mammalian ears bear little resemblance ... did in a tour-de-force comparative genomic study that included a fish, an amphibian, a reptile, a mammal and even a horseshoe crab (Limulus ...

Humans' outer ears may have evolved from the gills of prehistoric fish, a new study finds. Gene-editing experiments indicate that cartilage in fish gills migrated into the ear canal millions of ...