Maddie Moate investigates why some animals have body parts that serve no purpose.
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Watch more videos from Earth Unplugged Animals In Slow Motion And Stunning Time-lapse Photography http://bit.ly/EarthUnpluggedSlowMotio… Expeditions and Location Films http://bit.ly/EarthUnpluggedExpeditio… B
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Wilderness Sessions http://bit.ly/WildernessSessionsFilms
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About BBC Earth Unplugged We’re Earth Unplugged, and we make films about the incredible natural world and the animals that live here exclusively for YouTube. We investigate the conundrums, quirks and beautiful science of our amazing planet, delving into the BBC vaults and mixing it up with our own stuff to take a brand new look at Earth. From animal behaviour in slow motion to expedition films we’ve got you covered. Our planet is mind-blowing. Join us as we explore what it has to offer. Subscribe for more: http://bit.ly/SubscribeToEarthUnplugged