Have you ever wondered why there are so many more people who are right-handed vs. left-handed? A few thoughts from Alasdair Wilkins:
Handedness – the idea that one hand is better able to perform certain tasks than the other – is, if not exclusively a human trait, then certainly a mostly human one. After all, how could you tell if a dog was left-handed or a lion was right-handed? Their paws aren’t evolved to handle complex tasks like our hands are, and there’s no evidence that non-primates favor one limb over any other.
Another possible way of phrasing that is, “Why is the language center usually in the left hemisphere of the brain?” After all, if the energy intensive language centers happened to evolve so that they were usually in the right hemisphere, then most people would probably be left-handed instead. To that point, there’s no reason why our brains couldn’t have evolved that way – it’s simply a historical fact that they didn’t.
I’m left handed.