Lizard Reproduction
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Lizards have breeding seasons determined by cycles of photoperiod, temperature, rainfall, and food availability. A corresponding fluctuation can be seen in male lizards and testicular size. Male lizards may also undergo behavioural changes during breeding season and become more territorial and aggressive.
Lizard reproductive strategies vary; they may be
- oviparous
- ovoviviparous - the eggs are retained within the female until birth
- viviparous - with a placental type of circulatory connection
- parthenogenic - asexual reproduction found in lizards such as certain Lacerta spp. and Aspidocelis (Cnemidophorus) spp. consisting entirely of females.
References
- Mader, D.R. (2005). Reptile Medicine and Surgery. Saunders. pp. 1264. ISBN 072169327X