Amphibians: Animals that can live both on land and water

Amphibians are a group of animals that are able to live both on land and in water. They are known for their ability to adapt to different environments, allowing them to thrive in both terrestrial and aquatic habitats.

Characteristics of Amphibians:
Amphibians possess several unique characteristics that enable them to live in both land and water environments. Some of these characteristics include:

1. Moist Skin: Amphibians have thin, permeable skin that allows them to breathe through it. This adaptation is essential for their survival in both aquatic and terrestrial habitats.

2. Metamorphosis: Many amphibians undergo metamorphosis, a process where they transform from aquatic larvae (tadpole) to terrestrial adults. This physiological change allows them to adapt to different environments throughout their life cycle.

3. Dual Respiration: Amphibians have the ability to respire through their skin as well as through lungs (in adults) or gills (in larvae). This dual respiration system enables them to extract oxygen from both water and air.

4. Four Limbs: Most amphibians have four limbs, which allow them to move efficiently on land. These limbs are adapted for various forms of locomotion, such as walking, hopping, or climbing.

5. External Fertilization: Amphibians typically lay their eggs in water, where fertilization takes place externally. This reproductive strategy ensures the survival of their offspring in an aquatic environment.

Examples of Amphibians:
There are several well-known examples of amphibians, including:

1. Frogs and Toads: Frogs and toads are amphibians that are found in various habitats worldwide. They have powerful hind legs for jumping and are known for their distinct calls during the breeding season.

2. Salamanders and Newts: Salamanders and newts are amphibians with long bodies and tails. They have the ability to regenerate lost body parts, such as limbs or tails.

3. Caecilians: Caecilians are limbless amphibians that resemble large earthworms. They are found mainly in tropical regions and are adapted for a burrowing lifestyle.

In conclusion, animals that can live both on land and water are called amphibians. They possess unique adaptations that allow them to thrive in a wide range of environments, making them a diverse and fascinating group of animals.

They have following features
They have lungs to breathe land while in water in water they breathe through moist skin