The brilliant French prankster Rémi Gaillard dressed up as Santa Claus and in the holiday spirit, performed some hilarious Christmas pranks.

A friendly fox named Sly from SaveAFox Rescue was invited to the local Petsmart store to visit Santa Claus.

A buffalo walked over to an overturned tortoise in his enclosure and used his horn to flip over the helpless terrapin.

Monster expert Dr. Emily Zarka explains the historic 19th Century origins of the widely feared Yuletide creature Krampus.

Observational animator Joel Haver imagined what might happen if dogs really understood their roles in films.

Sam Battle built the "Santasizer", eleven robotic Santas in sunglasses that performed synchronized, synthesized Christmas carols.

Mark Rober was asked by Jimmy Kimmel to build a giant T-shirt cannon, so Rober enlisted help from 12 year old LEGO inventor Anthony Hartman.

A little gray kitten adorably checked out the spout of a countertop humidifier and received repeated facefuls of misted water.

There I Ruined It took a particularly fraught scene from 'The Beatles: Get Back' and mashed the song together with 'NSYNC's "Bye Bye Bye".

The Q science channel engineer built a remote-controlled walking dachshund inspired by Theo Jansen's Strandbeest sculptures.