I'm betting some very intelligent animals realized humans are very reluctant to cause them direct harm (read: very illegal to hurt an orca) and have decide to have some fun with the humans.
Tik Tok for orcas would not be a positive, but I get the feeling they are doing a "look what I did" all the same.
Tik Tok for orcas would not be a positive, but I get the feeling they are doing a "look what I did" all the same.