yeah i am not really sure why we are talking about skin or what exactly is being argued either.
hey here's another weird animal! it's a hoatzin!
they have their own family and genus and nobody really knows where they came from or what they're related to at all!
The Hoatzin is arguably the most enigmatic living bird in regard to its phylogenetic relationships. No satisfying evolutionary hypothesis has been proposed, and the situation has actually become worse with the availability of DNA sequence data.
hoatzins also smell like shit (literally, hence their other name "stinkbird") and their chicks have two claws on their thumb and first finger, respectively, which they use to climb trees until they learn how to fly. like a real life dinosaur! (okay i guess all birds are basically real life dinosaurs but come on that is so freaky and cool)
ADDED BONUS: i also found this while searching google images -
yep, that's a hoatzin furry.