When you think of an animal that reats to people, what comes to your mindM Is it a dog, a cat, or a horseM You probably don't think of an octopus. To most people, the octopus doesn't look in telligent because of its strange appearance. But octopuses have very large brains, and they are quite smart. For example, an octopus is in an aquarium, and it sees food outside. What happensM It finds a way to reach the food with its long arms. Octopuses are also very strong, and they often remove obstacles that separate them from their meal. Octopuses are generally sky creatures. But they sometimes show some emotions. For example, the respond in a very human way when they come in contact with people. They actually seem friendly. They like to play, and they come to get food. When they are afraid, they swim away. When people make them angry, they squirt ink on them. Under the sea, octopuses change color to hide in their environment. They also change color to show emotion. When the octopus is attacking its prey, it becomes darker. When it is sick or scared, it becomes light and pale. And when it doesn't get the food it wants, it turns red. It seems mad!