Swamp Monster Virgin Birth
https://www.bbc.com/news/science-environment-65834167
"The first case of a crocodile who made herself pregnant has been identified at a zoo in Costa Rica.
She produced a foetus that was 99.9% genetically identical to herself.
The phenomenon of so-called "virgin birth" has been found in species of birds, fish and other reptiles, but never before in crocodiles."