Which class of animals is known for living both on land and in water?

Amphibians are a unique class of animals that exhibit a dual lifestyle, thriving both on land and in water. This adaptability is largely due to their life cycle, which involves an aquatic larval stage, such as tadpoles, that breathe through gills. As they mature, amphibians undergo metamorphosis, developing lungs for breathing air and adapting to life on land while retaining a dependency on moist environments for reproduction and skin respiration. This characteristic enables them to exploit a variety of habitats, making amphibians distinct among animal classes. The other groups, while having their own unique adaptations, do not share this specific dual lifestyle in the same way that amphibians do.