Hypnotoad

From Futurama Wiki

Hypnotoad is a large toad-like creature has large oscillating multicoloured eyes and emits a droning hum. The toad apparently uses these as a power of hypnotism on surrounding people and animals (as shown in episode 3.07 "The Day the Earth Stood Stupid" in which the Hypnotoad hypnotizes sheep into a pen at a pet contest and then the judges and the audience into awarding it first prize).

The origins of Hypnotoad are unknown, but it is speculated that it is an alien, mutant or a product of genetic engineering. It would also appear that it is the only one of its kind on Earth. However there is belief that a creature similar in design to the Hypnotoad found on Kif's homeworld is part of its ancestry (episode 5.05 "Kif Gets Knocked Up A Notch").

The Hypnotoad also has its own television show that consists of a stationary camera filming the hypnotoad and its noise continuously. Despite the odd idea of this show it has been running successfully for over 3 seasons. The show is called "Everybody Loves Hypnotoad".

It is said in the commentary on The Day The Earth Stood Stupid, this is one of Matt Groening's favorite characters.