The hybrid origin of asexual species

An essential aspect of life is reproduction, and an essential aspect of reproduction is sex… except when it isn’t. While common in invertebrates, asexual reproduction is only seen in around 90 vertebrate species. And in this episode, Dr Susana Freitas (University of Lausanne, Switzerland) explains her work looking at the hybrid origin of parthenogenesis in what may be the best-studied asexual vertebrate—Darevskia lizards. Associated article: https://www.nature.com/articles/s41437-019-0256-5