Who put forward the "Recapitulation Theory"? State Biogenic law and briefly describe it with examples.

Recapitulation theory was put forward by E. Haeckel.

Biogenetic law states that ontogeny repeats phylogeny.

Every organism during its development repeats the evolutionary history of its race.

The embryos of the higher animals show resemblances with the adult of lower animals.

Example:

• The life history of a frog clearly shows the phylogenetic history. Frog develops through larval stage similar to that of fish.

• Man develops through a number of embryonic stages similar to that of the lower animals.

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