When are Pterotrachea finally going to go viral? How does anyone look at this animal and not flip their shit? I first saw them in a BBC documentary when I was a toddler and I still can’t believe a real thing evolved like this, but somehow as soon as I’m done thinking about them they just quietly retire to the background of my memory.
Multiple divers say that they have a tendency to follow you around when they see you. :) :) :)
Anatomical guide by request! This animal is technically a snail, but here’s how the parts of its body match up to a more typical snail:
They look like relatively ordinary snails early on, or at least in embryonic development, but as they mature the shell reduces, the mouth stretches out into a proboscis, and the foot flattens into a fin that steers it through the water “upside-down.”
It also happens to have EXTREMELY advanced eyeballs for a gastropod!
