Them's fighting words if you're an octopus, in that more than one octopus in a space often means a rumble. Neuroscientist Greg Gage and his colleagues analyze aggression by observing the fighting behavior of two-spotted octopuses or, if you prefer, octopodes. On DIY Neuroscience, a TED original series, watch cutting-edge neuroscience experiments on a shoestring budget. Check out more here: go.ted.com/diyneuroscience Subscribe to our channel: www.youtube.com/TED

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