Parthenogenesis is a form of asexual reproduction in which an organism develops from an unfertilized egg, resulting in offspring that are genetically identical to the mother. This process occurs in various species, including some plants, invertebrates, and a few vertebrates like certain reptiles and fish. Parthenogenesis can be a natural reproductive strategy in certain environments, allowing for rapid population increase without the need for males. However, it typically results in reduced genetic diversity among offspring.