Teimoso, a wild male capuchin, has to choose between a heavy, small stone and a light, large stone. Teimoso touches the small stone and then the large one, and finally decides to transport the small (and heavy) stone to the anvil to crack the nut open.
Visalberghi et al., Current Biology 19(3), 213-217.
http://www.cell.com/current-biology/abstract/S0960-9822%2808%2901624-2
http://www.current-biology.com
AND BAM! in no time that little sucker will be taking over the world.
BaronVonGotha 2 years ago
PRIMATES!
SpeciationEverywhere 3 years ago 2