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Dragonfly backpacks to probe secrets of the brain (2:39) 

Nov. 8 - Scientists in the US are planning to map the brain activity of the dragonfly as it hunts, using a specially built backpack to transmit electrical signals from the insect's active neurons to a computer. The researchers believe that, if successful, their experiments could shed light on how the human brain functions and how individual neurons interact. Rob Muir reports.

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