Ok biology fedi, WTF are these? They look like a miniature horseshoe crabs. I have never seen them before! These are in an ephemeral pool in the slickrock in SE Utah, Vermillion Cliffs National Monument, about 5,000 feet elevation. They are a couple inches long. From above I first thought they were tadpoles but I didn't see their tails wiggling as they swam so I went down for a closer look.
#arthropods #Invertebrates #WhatTheFuckIsThis