PETA has filed a lawsuit charging SeaWorld with violating the 13th Amendment by enslaving killer whales. This could be interesting.

The suit, which PETA says it will file Wednesday in U.S. District Court in San Diego, hinges on the fact that the 13th Amendment, while prohibiting slavery and involuntary servitude, does not specify that only humans can be victims.

Jeff Kerr, PETA's general counsel, says his five-member legal team - which spent 18 months preparing the case - believes it's the first federal court suit seeking constitutional rights for members of an animal species.

The scorn heaped upon this lawsuit in the court of public opinion will be roughly equal to the scorn once heaped upon the ideas of abolition and female suffrage. Somebody please have Jay Leno read some Peter Singer before he starts to discuss this news.

[AP, photo via AP]