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From Scientific American:
In an attempt to find out if octopuses are right- or left-handed, er, tentacled, scientists from the Sea Life Center in England, have provided 25 of the beasts with colorful Rubik's Cubes to play with in the center's aquariums across Europe. Many animals in nature are known to favor one appendage, but researchers are unsure whether that holds true for the eight-armed octopus. (They could turn out to be "octidextrous"—equally good with all tentacles.) Biologists, who worry about the stress that these creatures are prone to in captivity, want to determine if octopuses have a preferred side for receiving food, as this may make their lives just a little bit easier.
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