As everyone knows stories about Nazis sell newspapers and books. Since so much has already been published about them it's hard to find original takes on the subject. Unless of course the story is complete fiction. Take this for example which is currently one of the most popular stories on the Telegraph website:
Not only that but despite his known scientific output being totally worthless, in Brazil he was something of a genius and managed to permanently alter a whole town's genetic make up so that it was became especially prone to producing twins.
The only evidence to support the assertion that Dr Mengele was responsible for the town's twin boom is that there might have been a German vet or doctor in the town back in the early 1960s.