Board Thread:General Discussion/@comment-25266931-20170217011737/@comment-26397825-20170221033425

The only Fuanus to have been shown regrowing his tail was specifically a lizard. Certain types of lizards do regrow their tails, so it's not a random 'oh, Faunus can regrow tails', it's some lizards can regrow tails, so this person who had a lizard tail regrew theirs.

As Arkantos just said, and others have said in the past: Scorpions. Do. ''Not. '''Regrow. Their. Tails.'