A long time ago I had one of my my very first axolotl name Lucy (she leucistic) . She had only 1 pointy toe on the right foot , I bought her from the pet store that was going out of business, she was already very old when I got her . She look like a foot long happy captain crunch . I thought she'll grow back the foot in a few year but it never did till one day she accidentally jammed that point one toe/foot in to the very small crack of her old cave during water change,she got freak out and ripped half of her own leg off dangling. So to treat the dead hanging half leg I had no choice but to clip it out so it won't get infected or fungus .... Surprisingly enough it starting to grow a baby size whole foot with all the Little complete number of toes!! But the growth was extremely slow, not using to her new toes she tucked her whole leg behind her back while walking as old lady with one hand behind her back she passed away just last year ... I miss her