People for the Ethical Treatment of Animals. An eccentric Animal Rights organization that opposes factory farming, the wearing fur and leather, and other activites that they percieve as cruel to animals. They differ from more mainstream animal rights groups in that they seek to reduce animal suffering by promoting vegetarian or veganism and spread their message by pulling wacky stunts and protests to attract media attention.
There has also been some evidence that some of its more radical leaders have given support to ALF but that's not to say that all PETA members are terrorists.
PETA found evidence of animal abuse at a factory farm that supplied fastfood chains.