People often joke about a monkey's uncle, but it turns out a 'Humanzee' was very nearly a real thing.
While it sounds like something from a bad sci-fi film, one expert claims a real life Splice happened at a research facility in the 1920s.
Even more shockingly, the genetically altered creature was allegedly born and then eunthanised over ethical concerns.
According to renowned evolutionary psychologist Gordon Gallup, the incident happened at a lab where he used to work.
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The so-called 'Humanzee' was created a facility in Florida back in the 1920s, with scientists panicking after the experiment was a success.
At this point, you may quite reasonably ask, 'Why would anyone attempt such a thing?'
However, scientists claim that it could have massive ramifications with regards to growing human organs for transplants inside monkeys in the future.
Not too long ago, a Spanish scientist claimed that he has successfully grown the world's first human/monkey hybrid in a laboratory in China.
According to Juan Carlos Izpisúa Belmonte, the hybrid embryo was viable and could have been born had the process not been aborted.
However, according to Gallup, the practise of splicing together humans with our primate relations isn't exactly new - as the process was attempted during the 20th century.
Decades after the incident, Gallup told The Sun: "One of the most interesting cases involved an attempt which was made back in the 1920s in what was the first primate research centre established in the US in Orange Park, Florida.
"They inseminated a female chimpanzee with human semen from an undisclosed donor and claimed not only that pregnancy occurred but the pregnancy went full term and resulted in a live birth.
"But in the matter of days, or a few weeks, they began to consider the moral and ethical considerations and the infant was euthanised."
For those of you who failed GSCE science, it means that scientists impregnated a monkey with human sperm. (Yes, really!)
Not only that, but a hybrid child was born and then killed by aforementioned scientists - who were terrified by what they'd done.
Gallup says that the professor who told him worked at the centre until it moved to another university in Atlanta, Georgia in 1930.
Gordon Gallup is known for developing the 'self-recognition' technique that proved that primates can identify themselves in the mirror and are therefore self-aware.
Whilst this sounds bananas, scientists are still using monkey embryos in labs to study how organs grown in labs.
Some have even managed to grow old embryos outside of the womb for up 25 days.
Sounds like some scientists up to some monkey business, eh?
Katherine Sidnell