Stingray that got pregnant despite no male companion has died, aquarium says

Charlotte was suffering from a rare reproductive disease and announced last month that she hadn’t given birth and was no longer pregnant.in Hendersonville said on Facebook late Sunday that the stingray, Charlotte, died after getting a rare reproductive disease. It didn't go into further detail.

The aquarium said in late May that Charlotte was suffering from a rare reproductive disease, and that it was trying to find out more about the malady. “There have been studies done on southern rays, but we have not found any yet done on round rays,” it wrote.The aquarium announced in early June that Charlotte was no longer pregnant. The development led the facility to temporarily close to the public on June 1. In its post on Sunday, the aquarium said it would remain closed for the time being and that staff would continue to feed and care for the other animals.

The pregnancy was thought to be the result of a type of asexual reproduction called parthenogenesis, in which offspring develop from unfertilized eggs, meaning there is no genetic contribution by a male. The mostly rare phenomenon can occur in some insects, fish, amphibians, birds and reptiles, but not in mammals. Documented examples have included California condors, Komodo dragons and yellow-bellied water snakes.

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