Maddie Moate peers into the world of animal sexual strategy and explains how sex evolved in the natural world and the strange variety of practices that exist. Subscribe to Earth Unplugged - www.youtube.com/subscription_center?add_user=earthunpluggedtv Want to share your views with the team behind BBC Earth and win prizes? Join our fan panel here: tinyurl.com/YouTube-BBCEarth-FanPanel Check out the BBC Earth website www.bbc.com/earth Join the BBC Earth community: Facebook: www.facebook.com/bbcearth Twitter: twitter.com/BBCEarth?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Eauthor Instagram:www.instagram.com/bbcearth/?hl=en www.youtube.com/user/EarthUnpluggedTV www.youtube.com/subscription_center?add_user=earthunpluggedtv This is a channel from BBC Worldwide who help fund new BBC programmes.

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