Adaptation in aquatic animals: For respiration, aquatic animals get necessary oxygen from the water. These animals depend on aquatic plants and animals for food.
Example, fish, pila, snails, they have following characteristics in their physical and internal structure. These characteristics are called as adaptations.
Such as:
1. Aquatic animals have gills for respiration.
2. They possess scales or shell on their body.
3. Aquatic animals have air sac in the body which helps in living and swimming in water.
4. Eyes have a nictating membrane to protect it from water.
5. They have fins for movement or swimming.
