Camouflaged octopuses 'walk' on two tentacles
If you are using your limbs to disguise yourself, how do you flee danger without giving yourself away? The answer, when you have eight arms, is to use six arms for disguise and to walk across on the seafloor on the other two. That is the extraordinary behaviour observed for the first time in two species of octopus by Christine Huffard's team from the University of California, Berkeley, US.