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Natural World

2017-2018

Episode 3: Nature's Wildest Weapons: Horns, Tusks and Antlers

Duration: 59 minutes

on BBC Two HD

Professor Doug Emlen discovers the secrets of nature's arms races, what triggers them and what they can teach us about the most formidable weapons on earth - our own. Show more

BBC Two HD

About BBC Two

BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.