In order to know if there are pathologic changes in physiological variables related to exercise for a period of time this research shows the results of two parallel studies: The first one in bottlenose dolphin (Tursiops truncatus) during interactive programs with humans and the second in jumping horses (Equus ferus) during a training session in Mexico in a comparable method between species performing activities with humans.

For generations, dolphins have evoked mystery, fascination, and wonder about the oceans. The 1940’s marked the beginning of changing attitudes towards dolphins when Marineland in St. Augustine Florida began to display dolphins and their behavior to the general public. For the first time, people began to realize that dolphins and whales might be more than just smart ‘fish.’ At the same time, killer whales were considered a nuisance animal and were characterized as dangerous predators and indiscriminate killers.

Cetaceans in the wild and under human care develop a variety of ocular lesions. Although they have echolocation, cetacean species have good sight, making ocular health an important part of overall health care. The cornea is the primary site of abnormalities in both populations. Typical lesions of cetaceans under human care are characterized in this retrospective review of cases.