Animals Living On Both Land And Water
Key notes :
Definition:
- Amphibians: Animals that can live both on land and in water are called amphibians. They have adaptations that allow them to survive in both environments.
Examples of Amphibians:
- Frogs: Frogs start their life in water as tadpoles and later develop lungs to breathe on land.
- Toads: Similar to frogs, but they usually prefer to live more on land.
- Newts and Salamanders: These are amphibians that have slender bodies and live in moist environments.
Adaptations:
- Moist Skin: Amphibians have moist skin, which helps them breathe through their skin while in water.
- Lungs and Gills: They have gills in the larval stage to breathe underwater and develop lungs as they mature to breathe on land.
- Webbed Feet: Many amphibians have webbed feet, which help them swim efficiently.
Life Cycle:
- Metamorphosis: Amphibians undergo a life cycle that includes metamorphosis, where they transform from water-breathing larvae (like tadpoles) into air-breathing adults.
- Eggs in Water: Amphibians lay eggs in water, which hatch into larvae that are adapted to aquatic life.
Habitat:
- Dual Habitats: Amphibians are often found near water bodies like ponds, lakes, and swamps, but they also spend a significant amount of time on land.
Importance of Amphibians:
- Ecological Role: Amphibians are important for ecosystems as they help control insect populations and serve as food for other animals.
- Environmental Indicators: They are sensitive to changes in the environment, making them good indicators of ecological health.
Threats to Amphibians:
- Pollution: Amphibians are vulnerable to pollutants in water, which can affect their skin and eggs.
- Habitat Loss: Destruction of wetlands and water bodies reduces their habitats.
- Climate Change: Changes in climate can affect their breeding patterns and survival rates.
Let’s practice!
