Monday December 8, 2025
Earth —
Scientists in the Colombian Amazon have described a new fish species called Priocharax rex, only about 0.8 inches long, in a 2025 study.
It is the largest known member of its tiny genus and carries a round wing-like flap of skin between its pelvic fins that no one had seen before in this group.
This strange skin wing sits between the left and right pelvic fin bases and hangs like a little curtain under the belly.