You can blame genetics for all sorts of things: poor eyesight or flat feet, for example. But while these are common characteristics among humans, there are some genetic traits that are a little rarer. In fact, some are so rare that only a handful of people in the world share them. And from extraordinary blood types and heterochromia to extra ribs and even additional muscles, you probably don’t count these genetic attributes among those that you possess.
20. High bone density
Genetic mutations aren’t always a bad thing. In fact, some of them can give you seemingly superhuman abilities, such as the mutation of LRP5. This abnormality is usually linked to low bone density, but scientists have discovered that it can also result in high bone density – in other words, near-unbreakable bones. The revelation came to light after a man in a car crash in 1994 escaped without suffering a single fracture, and physicians soon realized that his extended family all carried the same trait.
19. Superhuman strength
Abnormal muscular strength in newborns is typically something you’d find in mice and cattle. But around the turn of the millennium, a mother gave birth to a baby in Berlin who carries the same genetic mutation twice over. It turned out that both the boy’s myostatin genes are inactive. When that happens in animals, they grow up lean – and so too did the boy. According to a 2004 report in The New York Times, further study of the mutation could lead to new cures for muscular dystrophy.