Well, I guess that’s… one theory.

Damien Gayle of the Daily Mail UK reports.

‘Humans evolved after a female chimpanzee mated with a pig’: Extraordinary claim made by American geneticist

The human species began as the hybrid offspring of a male pig and a female chimpanzee, a leading geneticist has suggested.

The startling claim has been made by Eugene McCarthy, of the University of Georgia, who is also one of the worlds leading authorities on hybridisation in animals.

He points out that while humans have many features in common with chimps, we also have a large number of distinguishing characteristics not found in any other primates.

Dr McCarthy says these divergent characteristics are most likely the result of a hybrid origin at some point far back in human evolutionary history.

What’s more, he suggests, there is one animal that has all of the traits which distinguish humans from our primate cousins in the animal kingdom.

‘What is this other animal that has all these traits?’ he asks rhetorically. ‘The answer is Sus scrofa, the ordinary pig.’

Dr McCarthy elaborates his astonishing hypothesis in an article on Macroevolution.net, a website he curates. He is at pains to point out that that it is merely a hypothesis, but he presents compelling evidence to support it.

Scientists currently suppose that chimpanzees are humans’ closest living evolutionary relatives, a theory amply backed by genetic evidence.

However, as Dr McCarthy points out, despite this genetic similarity, there are a massive number of divergent anatomical characteristics distinguishing the two species.

These distinguishing characteristics, including hairless skin, a thick layer of subcutaneous fat, light-coloured eyes, protruding noses and heavy eyelashes, to name but a few, are unmistakeably porcine, he suggests.