Mouse balls aren't the only testes that can heal. PrimeGen Biotech has announced just a few days later that they have discovered the same thing in human balls. That was quick.
Testicle Theater - NSFW, if you can't close your browser before the person over your shoulder says "Oh, Scarface! What's that playing Pacino - is it... it looks like..."
Castration extends life??? Not that I frequent this site, but the current Playboy reading list includes the Sex Lover's Book of Lists by the authors of the "How to Succeed With Women" and "How ... Men" books. Note the factoid in the review, in the 2nd paragraph, "men live longer without testicles (13 years longer, on average...)". (involuntary crossing of legs here) I've never heard that before, and I am not sure I believe it; I am only sure I don't want to believe it.