Fertilisation


Fertilisation or fertilization also known as conception, fecundation and syngamy, is fusion of gametes to form a new organism of the same variety. In animals, the process involves a sperm fuse with an ovum, which finally leads to the development of an embryo. Depending on the animal species, the process can occur within the body of the female in interior fertilisation, or outside in the case of external fertilisation.

The entire process of development of new persons is called procreation, the act of species reproduction.