Frogs lay eggs in water or wet places known as frog spawn. The eggs hatch into tadpoles that live in the water and have tails and gills. After 7-12 weeks the tadpoles grow hind legs and then front legs, their tails shrink and they develop lungs, allowing them to live on land as frogs. The newly emerged frogs eat insects and worms, find mates, and the females lay more eggs to continue the life cycle.