An armless dog that sprints on two legs? A six-legged cow? A two-headed pig? These bizarre images sound like punchlines to a joke. But this is serious science. This segment of "Weird, True and Freaky" runs down the strangest mutant animals of all time. Stream Full Episodes of : https://www.animalplanet.com/tv-shows/ Subscribe to Animal Planet: https://www.youtube.com/channel/UCkEBDbzLyH-LbB2FgMoSMaQ?sub_confirmation=1 Join us on Facebook: https://www.facebook.com/AnimalPlanet Follow Animal Planet on Twitter: https://twitter.com/AnimalPlanet Follow Animal Planet on Instagram: https://www.instagram.com/AnimalPlanet/