Is there a big difference between the tank environment that captive dolphins are kept in and their natural environment?
Dolphins are intelligent and social creatures that, in the wild, interact with hundreds of pod-mates, hunt communally, and have entire coastlines as their playground. In captivity, all of this is lost. Social partners are restricted to a handful of tank-mates. Captive dolphins are fed dead fish (wild dolphins only catch and eat live fish; they never eat dead fish) and they face a profound reduction in space and stimulation. Dolphins in the wild may swim up to 40 or 50 miles in a day and can dive to depths of hundreds of feet. Even in the largest facilities, captive dolphins have access to less than 1/10,000 of 1% (0.000001) of the space available to them in their natural environment. Dolphins in captivity are often restricted to swimming in circles. In many dolphins, this behavior is a sign that the dolphin is suffering psychologically; it is engaging in what is known as a stereotypical behavior. For an inquisitive, intelligent creature like the dolphin, a barren tank offers no explora