Oh yes, the mimic octopus. Most creatures that mimic and do so as an "act of will" ( Rather than being born looking a lot like something else ), can impersonate one other organism. The mimic octopus is capable of changing shape and colour to become any of 10 other species - For example, change colour to black and yellow stripes, thin out ones arms and body and one becomes a sea snake. Or contract arms to look fatter, cahnge to bright red, divert fluids in tissues to make spikes and bumps appear and suddenly it's a starfish.

Not only does this show what not having bones or enclosed circulation combined with chromatic pigments does for one, the real kicker is that it argues for a conciousness that rivals ours and otranks many other animals. Consider; Octopus sees other organism. Octopus then works out the bodily manipulations needed to look like that and the colours required. To do this, it must be 'aware' of itself in a way that many otehr animals are not - A level of proprioreception that is near equal to human actors pretending to be trees.

And they can take the lids off of any containers. If they ever solve the reproduction and growth problems, you humans are screwed royally.