Changes

Lizard reproductive strategies vary; they may be:

Lizard reproductive strategies vary; they may be:

* oviparous - laying eggs

* oviparous - laying eggs

* ovoviviparous - the eggs are retained within the female until birth

* ovoviviparous - the eggs are retained within the female until birth of live young

* viviparous - with a placental type of circulatory connection

* viviparous - live-bearing, with a placental type of circulatory connection

* 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.

Parthenogenesis has been reported in about 30 species of lizards.  

Parthenogenesis has been reported in about 30 species of lizards.