Board Thread:Manga Discussion/@comment-24599114-20171223021559

Ok, so, I am admittedly currently watching the anime, and I'm gonna be reading the manga too. But anyways, how do the mutant type quirks that result in the person being animal like work? With something simple like earphone jack, those could just grow in when she hit the age of four, but what about Froppy? When she was four did she suddenly wake up as a smaller version of what she is now? Was the change gradual? Was she born that way? Is this mentioned in the manga because it hasn't been thus far in the anime and I couldn't find it on the wiki. 