frogs

Frogs are amphibians, meaning they live both in water and on land during different life stages. They have smooth, moist skin that can absorb oxygen, aiding their breathing. Frogs typically start life as tadpoles—a fully aquatic stage with gills—before transforming into adult frogs with lungs and strong legs for jumping. They play important roles in ecosystems as predators of insects and prey for other animals. Frogs are sensitive to environmental changes, making them good indicators of habitat health, and they are found worldwide, with diversity reflecting their adaptability to various environments.