The diagram below shows the Life Sycle of a frog.

The diagram shows the natural process life cycle of a frog from the embryo

stage

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, through seven developmental phases from tadpole to fully grown amphibian.  

Initially

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, the fertilised eggs grow into embryos, from which tiny tadpoles emerge and shelter under plants in the water or pond. The tadpole begins life black in colour, and it has a long

tail

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and shorter body. As it grows, external gills for breathing are produced 

while

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subsequent stages in its development include a longer

tail

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and when

this

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stage

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is complete, back limbs begin to appear which allows the tiny creature to swim faster. The baby frog is nourished by food and nutrients stored in its

tail

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, and the next

stage

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in the cycle is for the front limbs

to begin

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growing

while

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the

tail

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shrinks and eventually disappears. At each

stage

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, the creature continues to enlarge significantly and changes in colour from black

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to dark green and ultimately to bright green. Once the

tail

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has disappeared, the frog is supported on four limbs and continues, in the final phase, to develop into a full-sized amphibian.