Amphibians

Amphibians are special animals that live in two worlds. They start life in water and later move to land. Frogs, toads, salamanders, and newts are all amphibians. The word amphibian means 'double life.'

Life in Two Worlds

Most amphibians begin life as eggs laid in water. The babies breathe through gills like fish. As they grow, they develop lungs and legs. Adult amphibians can live on land but usually stay near water to keep their skin moist.

Amazing Amphibian Skin

Amphibians have thin, moist skin that can absorb water and oxygen. This means they can actually breathe through their skin! Some amphibians have bright colors to warn predators they are poisonous. Amphibian skin must stay wet to work properly.

Fun Facts

• The Chinese giant salamander is the largest amphibian and can grow over 5 feet long.
• Some frogs can freeze solid in winter and thaw out alive in spring.
• Amphibians were the first animals with backbones to live on land.

Did You Know?

Scientists call amphibians 'indicator species' because they are very sensitive to pollution. If amphibians are healthy, it usually means the environment is healthy too!