Summary:
- This article is about how fish use their fins and tails to swim through the water. Fish have different types of fins that help them move in different ways.
- The article explains that fish use their tail fin to propel themselves forward, while their other fins help them steer and balance. The shape and size of a fish's fins depends on the type of fish and how it lives in the water.
- The article also mentions that some fish can even use their fins to jump out of the water, which helps them escape from predators or find food.