Frogs lay their eggs in water or wet places. The eggs take between 6 to 21 days to develop into tadpoles.
Once hatched, tadpoles live exclusively in water. They breathe using gills and eat algae.
As they grow, tadpoles undergo metamorphosis. They develop legs, and their tails shrink.
Adult frogs live on land but return to water for breeding. They have lungs and can breathe air.