Molly and Melville are a pair of whales who first appeared in episode 519 of The Muppet Show. They befriend Kermit and Robin, who help them hide from a boat full of pig whalers, as they sing "Friendship." At eight feet long, Molly was the largest hand puppet built for The Muppet Show. After filming on the show had wrapped, the puppet was donated to Greenpeace and became a mascot in their efforts to save the world's real whales. Melville's name is a reference to Herman Melville's whale-hunting novel, Moby Dick.