My Science School

Frogs’ eggs become tadpoles within two weeks of being laid in the water, but tadpoles may take anything from two months to three years to change completely into frogs.

      The time taken seems to depend on the environment. Tadpoles will generally develop faster in warmer waters. Also the more advanced species of frog have simplified and shortened the process of transformation.

    Tadpoles, like fish, breathe through gills. They develop lungs during the change-over, gain legs and loose their tails. Their diet changes, too-tadpoles live on plants in the pond, but frogs live on very small insect.

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