13 minutes ago, ScumCoder said:
Uh... I'm pretty sure no mammal on Earth has joints that allow things like this:
According to all known laws of nature, no, but a quick wiki-skim shows that the concept isn't entirely unheard of, but appears to mostly exist on a microscopic level when it exists at all (wiki). The closest thing to Tails' tails would appear to be Flagellum and I've attached an image from the wiki for reference, the prokaryotic flagellum definitively looks like it could emulate Tails' tails. (wiki).