Why Do Dogs Wag Their Tails? | How Do Animals Do That?

Uncover the science behind a dog's tail wag, and find out exactly why zebras have black and white stripes. Stream Full Episodes of How Do Animals Do That: www.animalplanet.com/tv-shows/how-do-animals-do-th… Subscribe to Animal Planet:    / @animalplanet   Join us on Facebook: www.facebook.com/AnimalPlanet Follow Animal Planet on Twitter: twitter.com/AnimalPlanet Follow Animal Planet on Instagram: www.instagram.com/AnimalPlanet/

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