human
What is the most important thing I should know about the hippopotamus?
assistant
The hippopotamus is a large, semi-aquatic mammal that can grow up to 6.5 meters (22 feet) long and weigh up to 3,300 kilograms (7,000 pounds). It has a distinctive black and white coloration, with males being slightly larger than females. Hippos are known for their loud grunts and snorts, which they use to communicate with each other. They live in groups called pods, and are territorial animals.