You don’t need to have seen documentaries like The Cove to feel uneasy about captive dolphins.<br />Many dolphins are being held captive in tiny tanks at aquariums and theme parks worldwide.<br />Many don't want to eliminate those experiences completely as they educate the public.<br />However, robots like a new self-contained swimming dolphin could be used instead.<br />Theme parks like SeaWorld have always posed ethical concerns, reports Gizmodo.<br />Unlike zoos, captive creatures are often trained and required to perform for visitors several times a day.
