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Reverted edits by ElectricOcean (talk) to last revision by JonG
'''Vivipary''' refers to the retention of the [[embryo]] inside the body of a mother resulting in the live birth of offspring in animals. The term can also be used to refer to plants in cases where the seed [[germination|germinates]] before they detach from the parent, as opposed to germinating after they detach <ref>http://dictionary.reference.com/browse/vivipary</ref>.
== Observed cases of vivipary ==
The transition from oviparous animals to viviparous animals is a well observed and documented process. A notable example is that of the Skink group of lizards, which have been observed in several stages of egg cell retention in the transition from oviparous birth to viviparous birth. This has been observed particularly when environmental conditions have forced such a change where it is beneficial to retain the egg <ref>Live-bearing in lizards and snakes. R, Shine and J, Bull., The American Naturalist. Vol 113, no 6, 1979.</ref>.
== References ==
<references/>
[[Category:Reproduction]]