‘There are many things that make the octopus a strange creature, but one of them is that each of its eight arms has an essentially infinite number of positions, and yet each arm operates independently. How does an octopus keep from tying itself in knots?

A group of Israeli and American researchers think they’ve discovered how the octopus keeps its arms in order. The problem is that octopus arms behave as if they have a “mind of their own.” ‘ (io9)