Jun 21, 2022

419-Million-Year-Old Chinese Fossil Shows Human Middle Ear Evolved From Fish Gills

Posted by in categories: evolution, habitats

The human middle ear—which houses three tiny, vibrating bones—is key to transporting sound vibrations into the inner ear, where they become nerve impulses that allow us to hear.

Embryonic and fossil evidence proves that the human middle ear evolved from the spiracle of fishes. However, the origin of the vertebrate spiracle has long been an unsolved mystery in vertebrate evolution.

“These fossils provided the first anatomical and fossil evidence for a vertebrate spiracle originating from fish gills.” —

Comments are closed.