> It is not a matter of opinion that orca whales, bottlenose dolphins and beluga whales die prematurely when kept in captive settings, but rather a potent and recurring reality. Marino & Frohoff (2011) show that this is especially and most dramatically seen in the orca whale, with males living on average 29.2 years in the wild with an observed maximum of 60 years, and females living 50.2 years on average with an observed maximum of 90 years. Their naturally extensive lifespan is shortened severely when they are placed in captive environments, with few orcas living past the age of 20 in captivity (p. 3)

> Many cetaceans in captivity develop stereotypies, or unnatural, often purposeless behaviors that can be a manifestation of poor mental health. Such behaviors include repetitive pacing, swaying, head-bobbing or circling, and bar-biting (Cetacean Inspiration, 2011). One of the most prominent stereotypies noticed in these whales is an activity known as slide outs. The whale will slide out of the water and sit motionless, sometimes for 10 minutes at a time (Cetacean Inspiration, 2011). This creates safety issues for the guests of marine mammal parks like SeaWorld. If a whale did this in the wild for too long of a time the weight of the whale could crush its own internal organs (Cetacean Inspiration, 2011).

https://blogs.umass.edu/natsci397a-eross/the-detriments-of-c...