A stingray called Charlotte is pregnant despite having no mate, in a suspected case of parthenogenesis.
Charlotte - a round stingray like the one pictured above - could give birth in the next two weeksA stingray called Charlotte is pregnant despite not sharing her tank with a male for at least eight years.
Charlotte is a rust-coloured round stingray that has spent most of her life in an aquarium in North Carolina. Staff originally thought that Charlotte's pregnancy was a tumour after noticing a growing lump on her back.The pregnancy is likely due to a phenomenon called parthenogenesis. This is a form of asexual reproduction where a female egg is fertilized without the sperm from a male.Dr Kady Lyons, a research scientist for Georgia Aquarium, who is not involved with the North Carolina aquarium, spoke to the Associated Press and said Charlotte's pregnancy was the only documented example she was aware of for this species.
Dr Lyons explained that these animals are not cloning themselves. Instead, a female's egg fuses with another cell, triggering cell division which leads to the creation of an embryo.
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