What is mimicry?
Mimicry is a mechanism used by many organisms to disguise and camouflage themselves. Organisms sometimes mimic inanimate objects, such as rocks or differently patterned backgrounds. But more dynamic mimicry behaviors are also observed, wherein an organism will mimic another model organism, in coloration and behavior, to better blend in with its environment. Cephalopods have been found to mimic their background environments with body coloration and patterning. But several observations have also found that species will mimic other organisms found in their environments [4][9].
Types of Mimicry: Mullerian and Batesian
Mullerian mimicry occurs when two poisonous species share similar physiological or behavioral traits. This similarity reinforces the message to predators that individuals with these traits are poisonous, thus aiding both species in their deterrence of predators.
Batesian mimics exhibit coloration, patterning or behavior similar to a species that is poisonous, but they are not actually poisonous themselves. This similarity will deter potential predators from taking the chance on potentially deadly prey.
It seems most likely that mimcry in cephalopods is Batesian. The diversity of mimic patterns and general polymorphism in cephalopods who exhibit these behaviors suggests that these behaviors are likely Batesian. Mullerian mimics are expected to exhibit less variance, as their success depends upon similar appearance. The fact that cephalopods mimic so many different models, and that these behaviors are not continuously exhibited, suggests a Batesian mimicry model [9]