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