At the end of every Price Is Right episode, longtime host Bob Barker burned these words into viewers' minds: "Help control the pet population. Have your pets spayed or neutered." The beloved game-show host has led a life of animal's rights activism, and Animal Defenders International will honor him with its Lord Houghton Award. Over the years, Barker, a strict vegetarian, paid to have large cats airlifted from Bolivian circuses and donated millions to stop whaling ships in Japan. ADI said Barker's activism before Congress and his efforts to help elephants, bears, and chimps were especially worthy of the award. As for Barker's signature line on TV, it didn't stop when the 88-year-old retired in 2007. Since then, host Drew Carey has faithfully delivered the plea morning after morning at the end of every show.