Marine mammals should not be held captive because the mammals are used to being free in the sea swimming around together with thier groups of families. Then sea world trainers question why they act violently and attack them because they dont wana be alone they need large of bodies of water and family to be acompainied with. They also need varieties of food that the ocean provides for them not just only small fish at sea world and only for stunts there able to do. Lastly i belive in a free world for humans and animals not just mammals but every speices being kept captive because if u really think about it you should treat humans and animals the way u want to be treated i'm sure nobody would like to be forced to preform stunts for food and be pulled away from their families.
