Parthenogenetic species - for example water fleas - reproduce asexually, without need of a male, mating or pollination. In parthenogentic animals, the offspring are usually all female, and in certain types of whiptail lizards, the entire species is female. Parthenogenesis often happens where there are no males of a species in the vicinity. In some cases, should males make a reappearance, the species can switch back to sexual reproduction. Recently in zoos, komodo dragons were discovered to be capable of this reproductive trick.
Female Komodo dragons can reproduce without a male.
Female Komodo dragons can reproduce without a male. Their body creates a sperm substitute with which they fertilise their own eggs. When they first hatch, baby dragons are surprisingly vulnerable and climb trees as soon as possible to evade predation on the ground.
Take a trip through the natural world with our themed collections of video clips from the natural history archive.
With Ooh's and Ahh's galore this video clip collection celebrates a world of adorable animal babies.