How smart can you be with a brain the size of a nut? Pretty darn smart, actually http://on.natgeo.com/2GFI2Oj

How smart can you be with a brain the size of a nut? Pretty darn smart, actually http://on.natgeo.com/2GFI2Oj 

https://twitter.com/NatGeoTravel/status/975643097903321089