Via Marginal Revolution comes this amazing video of the mimic octopus, a recently discovered chameleonic octopus which lives near Indonesia and Malaysia:
We've all encountered amazing examples of mimicry before - butterfly mimicry comes to mind - but, as the scientists who discovered the octopus write in their paper, the mimic octopus is unusual in its use of "dynamic mimicry":
[D]ynamic mimicry has the unique advantage that it can be employed facultatively, with the octopus adopting a form best suited to the perceived threat at any given time.
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