PeTA is team plasma.
Team Plasma is the main antagonistic force in the PokÃ©mon Black and White series. They plan to free PokÃ©mon from humans by separating them from the human world, as they see PokÃ©mon and human as equals; and therefore, to capture one in a PokÃ©ball is the same thing as enslavement. Team Plasma is headed by N, who captures Zekrom or Reshiram (depending on the game version); and Ghetsis, N's father and one of the seven Sages of Team Plasma. It is revealed that Ghetsis had been using N and Team Plasma to control all PokÃ©mon in Unova. In PokÃ©mon Black 2 and White 2, however, Team Plasma has split into two factions. One is loyal to N, and one is controlled by Colress who, in turn, follows Ghetsis.
Also it turns out that the main plasma was being manipulated by his father for evil...