Banned from Seaworld.
Explanation: This joke implies that mixing human DNA with whale DNA would create a situation where a human might attempt to copulate with a whale, which is absurd and humorous. The punchline, “banned from Seaworld,” suggests that such behavior would be so inappropriate that it would lead to being banned from a family-friendly marine park. The humor relies on the shocking and ridiculous imagery, creating a funny and unexpected twist.