Biology Hoaxes

A pamphlet published in Paris described the case of a woman who had given birth to a son, even though her husband had been absent for four years. When charged with adultery, the woman claimed innocence, explaining that her husband had impregnated her in a dream. The court accepted this argument. The report of this ruling caused an uproar throughout Paris, but upon investigation the pamphlet was revealed to be a hoax. More…

Entomologists were fascinated when, shortly before his death, William Charlton presented them with a specimen of a rare, one-of-a-kind butterfly. Sixty years later, Linnaeus examined it and declared it to be a new species, although none other of its kind had ever been found. Thirty years after that, a Danish entomologist decided to examine it more closely, and it was only then discovered to be a common Brimstone butterfly with black spots painted on its wings. More…

Mary Toft claimed she was giving birth to rabbits, and she performed this feat in the presence of the King's personal surgeon. She was taken to London, where she continued to give birth to rabbits. But when the physician Sir Richard Manningham threatened to operate on her in order to examine her miraculous uterus, she confessed it was a hoax. She had been hoping to gain a pension from the King on account of her strange ability. More…

The British Royal Society received a report detailing how women could become pregnant without a man, due to the presence of microscopic "floating animalcula" in the air. The author suggested this discovery might restore the honor of women who could not otherwise explain their pregnancies. The report was actually satirizing the "spermist" theory, which held that sperm were little men (homunculi) that, when placed inside women, grew into children. More…

Charles Waterton was a famous English eccentric and naturalist. In 1824, he returned to England from an expedition to Guiana, bringing with him the head of a fabulous specimen which he described as the 'Nondescript.' It looked very much like the head of a person, though the exposed face was surrounded by a thick coat of fur. Waterton claimed he had encountered and killed this man-like creature in the jungles of Guiana. More…

During the 1920s, Austrian scientist Paul Kammerer designed an experiment involving a species called the Midwife Toad. He wanted to prove that Lamarckian inheritance was possible. When his experiment produced positive results, the scientitic community was stunned. That is, until researchers had a chance to examine his toads more closely. More…