 If you search for orca parks on YouTube, for example, there's videos of them doing full front flips, of jumping out the water, twirling in midair as crowds go crazy and clap and cheer. I found it kind of odd in a way because it looks so unnatural for them to do that. I mean, you wouldn't see an orca do front flips in the wild. But there are other welfare issues too. Here's Rob again.