Reproduction without mating is called parthenogenesis. Parthenogenesis is relatively common in some invertebrates and lower plants, but this trait is shared by only a fraction of a percent of vertebrate species. Scientists have documented parthenogenesis in at least eight lizard families and four snake families so far. This trait can occur in a few individuals or across an entire species. This is a dubious adaptation in some regards, as it limits genetic diversity, which could result in parthenogenetic species or populations being less adaptable to adverse environmental changes. On the other hand, it can enable a single immigrant to a new area to begin establishing a population.
This lesson is part of Certified Herpetological Guide. Enrollment is self-paced, with no deadline to finish (about 50 hours).
