Why do pigs have curly tails?

Mini pigs have straight tails and a long tuft of hair at the bottom. Many meat pigs get their tail's docked these days. read more

Wild pigs and many breeds of domestic pigs do not have curly tails. In wild pigs, the straight tail is used for communication with other pigs. The curly-tail trait may been accidentally carried along with other dominate traits during early pig breeding, according to U.S. Department of Energy, Newton Ask a Scientist. read more

Chinese breeders may have artificially bred pigs to favor those breeds with curly tails for aesthetic reasons. The curly tail could have been an evolutionary answer to pig fights. During fights, pigs will often bite one another's tail, causing serious injury. read more

Pigs have been domesticated for thousands of years and those possessing a kinked or slightly curled tail were targeted in order to increase the chances of the offspring having a curly (and hopefully more so than their parents) tail. read more