Marine experts have given 25 octopuses (octopi?) a Rubik’s Cube each in a study aimed at easing their stress levels in captivity. Scientists believe the intelligent sea creatures have a preferred arm out of eight that they use to feed and investigate with. They are now testing this theory with a month-long observation project in which the octopuses will be given food and toys to play with. Read the full story here.

Thanks to Dark Roasted Blend for the tip!