Mimic Octopus
Another species of octopus that has an unusual defense mechanism is the mimic octopus. It is native to the Indo-Pacific area, usually found near Indonesia off the coast of Sulawesi. In the early 90s, experts discovered the incredibly clever way that the mimic octopus utilizes when it feels under attack.
The mimic octopus is a shape-shifting animal, where it can take on the forms of a lionfish, jellyfish, shrimp, crab, and about ten other animals. The surprising fact is the octopus can sense what sea life is nearby and adapt its shape accordingly to ward off the danger. It is believed that the mimic octopus is the only aquatic species that can impersonate other sea creatures.