All sorts of plants and animals live in lakes, including fish, turtles, and algae. Water birds rely on lakes for food, water, and a place to live.
Animals that live near a lake may visit it to find food, take a drink, or cool off. People need the water in lakes, too.
Sometimes, people even make lakes in places that would not naturally have them so that towns and cities can get the water they need. These artificial lakes are called reservoirs.