Pollination is when pollen grains from an anther, the male portion of a flower, are transferred to a female part in the flower, known as the stigma enabling later fertilisation and the production of seeds. The study of pollination brings together many disciplines, such as botany, horticulture, entomology, and ecology. The pollination process as an interaction between flower and pollen vector. The productivity of many crops benefits from the presence of pollinating insects. Animal-mediated pollination contributes to the sexual reproduction of over 90 % of the approximately 2,50,000 species of modern angiosperms. The diversity of crops that depend on animal pollination provides still more impressive estimates.