translation.en: The common answers include things like seeking safety in numbers or hunting in packs or gathering to mate or breed, and all of these explanations, while often true, make a huge assumption about animal behavior, that the animals are in control of their own actions, that they are in charge of their bodies.
translation.zh: 通常的说法包括 获得安全，或者方便捕猎 或者聚集交配繁殖， 这些所有解释 虽然通常正确 但对动物行为做出了一个重要假设， 那就是动物掌控它们的行为， 并掌控它们的身体。