What are three facts about dolphin?

1. Dolphins are highly intelligent creatures. They have large brains and are capable of learning complex tasks. Dolphins have been shown to recognize themselves in a mirror, solve problems, and even use tools.

2. Dolphins are social animals. They live in groups called pods and communicate with each other through a series of clicks, whistles, and body language. Dolphins are also known for their friendly behavior towards humans and other animals.

3. Dolphins are found in all oceans of the world. They range in size from the tiny Commerson's dolphin, which is only about 4 feet long, to the massive orca or killer whale, which can grow up to 30 feet long. Dolphins are predators and eat a variety of fish, squid, and crustaceans.