Largest-ever study of artificial insemination in sharks—and the occasional ’virgin birth’
▻https://phys.org/news/2021-05-largest-ever-artificial-insemination-sharksand-occasional.html
In the genetic analysis of the offspring, the team also found two instances of parthenogenesis, where the mother reproduced on her own without using the sperm she’d been inseminated with. “These cases of parthenogenesis were unexpected and help illustrate how little we know about the basic mechanisms of sexual reproduction and embryo development among sharks,” says Wyffels