human
What are some interesting facts about the octopus?
assistant
1.  Octopuses can change their color to match their surroundings, and they have a complex nervous system that allows them to move around quickly.
2.  Octopuses have been known to mimic the shape of other animals in order to trick predators into thinking it is something else.
3.  Octopuses use ink to communicate with each other, and they can even use this ink to write messages on objects.