Animal or Plant?
A cuttlefish's skin
can be as smooth as a polished rock, as bumpy as a brain coral, or as spiky as
seagrass, and all these different textures can appear on a single animal,
morphing from second to second. Cuttlefish rely on special cells in their skin
called papillae to carry out these transformations. The cuttlefish at right
also seems to be crimping the eight legs on its head to mimic the surrounding
environment.