[Keiko has had limited contact with other marine mammals, but none of the encounters were close enough to learn much about his ability to interact in the wild. A harbor seal wandered into the pen, but quickly exited after spotting Keiko.] We've had pilot whales and mink whales and harbor porpoises, and we do see a change in behavior, ... He becomes a lot more vocal. He's a lot more active when these animals do show.