Complex sentence: Donkey basketball has been targeted by animal rights groups such as PETA, who note that the donkeys involved are dragged, kicked, and punched by participants who have no experience with handling animals.
Split into simpler sentences: Donkey basketball has been targeted by animal rights groups such as PETA, who claim that the sport is cruel to animals. They note that the donkeys involved are dragged, kicked, and punched by participants who have no experience with handling animals.