Changes

Lizard reproductive strategies vary; they may be:

Lizard reproductive strategies vary; they may be:

* '''oviparous''' - laying eggs (most lizards)

* '''oviparous''' - laying eggs (most lizards)

* '''ovoviviparous''' - the eggs are retained within the female until birth of live young (all monitors, most iguanids, water dragons, all geckos, most chameleons)

* '''ovoviviparous''' - the eggs are retained within the female until birth of live young (all [[Monitor|monitors]], most iguanids, [[Water Dragon|water dragons]], all geckos, most [[Chameleon|chameleons]])

* '''viviparous''' - live-bearing, with a placental type of circulatory connection (blue-tongued skinks, shingle-backed skink, prehensile-tailed skink, Jackson's chameleon)

* '''viviparous''' - live-bearing, with a placental type of circulatory connection (blue-tongued skinks, [[Stump-tailed Skink|shingle-backed skink]], [[Prehensile-tailed Skink|prehensile-tailed skink]], [[Chamelone|Jackson's chameleon]])

* '''parthenogenic''' - asexual reproduction found in lizards such as certain ''Lacerta'' spp. and whiptail lizards (Aspidocelis [''Cnemidophorus''] spp.) consisting entirely of females. Although they reproduce asexually, these females still show courting and pseudocopulation.

* '''parthenogenic''' - asexual reproduction found in lizards such as certain ''Lacerta'' spp. and whiptail lizards (Aspidocelis [''Cnemidophorus''] spp.) consisting entirely of females. Although they reproduce asexually, these females still show courting and pseudocopulation.

==Temperature-Dependent Sex Determination==

==Temperature-Dependent Sex Determination==

A few species of lizards, such as the leopard gecko (''Eublepharis macularius'') have temperature-dependent sex determination where the sex of the developing fetus is determined by the temperature at which the eggs are incubated. The exact temperatures are species dependent; however the shift from one sex to the other is not absolute. A range of temperatures exists at which both sexes are produced at varying proportions and therefore most incubators used by breeders are not accurate.

A few species of lizards, such as the [[Leopard Gecko|leopard gecko]] (''Eublepharis macularius'') have temperature-dependent sex determination where the sex of the developing fetus is determined by the temperature at which the eggs are incubated. The exact temperatures are species dependent; however the shift from one sex to the other is not absolute. A range of temperatures exists at which both sexes are produced at varying proportions and therefore most incubators used by breeders are not accurate.