Watch How This Tentacled Caterpillar Reacts to Sound

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This Peruvian caterpillar reacts to loud noises with the tentacles on its back. 

See the World at the Microscopic Level

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This is a compilation of videos and digital-time lapse footage from Nikon's photomicrography contest edited together by The Atlantic. 

The full list of winners can be found here: http://www.nikonsmallworld.com/news/a...

Watch This Woman Control Another Person's Arm With Her Brain

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Greg Gage is on a mission to make brain science accessible to all. In this fun, kind of creepy demo, the neuroscientist and TED Senior Fellow uses a simple, inexpensive DIY kit to take away the free will of an audience member.