Check out the amazing ways in which these undersea creatures protect themselves and hunt for food using biological camouflage.
For more information on the fascinating mimic octopus check out the original paper1 (268kB ) or visit its MarineBio page.
1Norman, M.D., Finn, J., Tregenza, T. (2001) Dynamic mimicry in an Indo-Malayan octopus, Proceedings of the Royal Society of London B, 268, 1755-1758.