Some frogs don't need much water when they mate. Sometimes a little rain pooled in a curled leaf is all that's needed for a female to deposit her eggs there. When a frog's eggs first make contact with water their protective layers of jelly soak up the water and swell, forming a jelly-like blob.
Tadpole also called a polliwog: The tadpole begins as a single cell organism inside the egg. It survives on the yolk inside the egg. While in the egg, the cells begin to divide over and over until you have a small tadpole that will hatch out of the egg around six to 21 days after the egg was fertilized.
Around six to nine weeks, the tadpole will become longer and will start to develop a head and the legs of a frog. These legs start out as bulges in the front and back of the tadpole. The tail shortens more and more as the tadpole develops.
Between nine and 12 weeks after hatching, the tadpole has lost most of its tail and has developed a tongue with which the froglet
frog will use to eat insects! The tadpole is now almost a full grown frog and will spend time out of the water.
Metamorphosis is the process of changing from a tadpole to a frog. Frogs live predominately on land and breathe air through lungs. However, many frogs still like to swim! Now the mature frog can mate and/or lay eggs and the process will begin again