This little guy is always ready for a costume party. The mimic octopus lives in the tropical sea of Southeast Asia and was not discovered officially until 1988- probably because it was too busy looking like a string ray, or a flounder, or a jellyfish, or any of the other 15 creatures it can shape-shift into.
The most other octopuses can is blend into the sea floor to appear as rocks The mimic octopus grows up to 2 feet in length and its normal coloring consists of brown and white stripes or spots. Based on observations, the mimic octopus may decide which animal to transform into based on local predators.
For example, when the octopus saw a damselfish in the distance, it was observed to appear as a banded sea snake; a damselfish’s predator. It did this by turning black and yellow, burying six of its arms, and waving its other two arms in opposite directions. If you dress up as this guy during Halloween, you could probably go to the same house 15 times.