Out in the wild they get to be with there own and just live there life. It is unfair that they are taken from there hoes for peoples entertainment in many ways.
Firstly the animals don't have enough space to do what they would in the wild. They travel about 62 miles per day in the wild and cant't go that much at all in captivity.
Also when in captivity they don't have all the right needs they have in the wild. For example they cant get all the food they need because the workers don't know how much food they really need.
Keeping killer whales in captivity is cruel also because they get punished and tortured. For whales in captivity if they don't do the right things they wont get fed.
For places like sea world to get the whales they separate the whales from their parents. When separated from parents the whales can get depressed and not act the same. Imagine getting separated from your parents and not being able to do anything about it.
During winter and cold times the animals are put inside and forgotten about basically. During the time they have to stay in there little pin inside and just stay there all day. It is cruel for them to be in that position