- Swim in the water because fish are aquatic creatures.
- Breathe through gills to extract oxygen from the water.
- Move their fins to control their movement and balance in the water.
- See in the water because they have specialized eyes that allow them to see underwater.
- Detect movement in the water through their sensory organs.
- Some fish can generate electrical fields to communicate and navigate in the water.
- Some fish can make sounds, such as grunts, clicks, and chirps, to communicate with each other or attract mates.
- Some fish can change color or pattern to camouflage themselves or communicate.
- Some fish can jump out of the water to catch prey or escape predators.
- Fish have an incredible reproductive system: They lay eggs, which hatch into fry, which then grow into adult fish.
- Some fish can live for many years: Some species of fish, such as the Greenland shark, can live for over 400 years!
- Fish play an essential role in the ecosystem as a food source for other animals, as well as a part of the food chain and nutrient cycle.