Hacker News new | ask | show | jobs
by AngryData 359 days ago
Wouldn't nutrition, diet, and lifestyle changes be a far more likely explination than evolution? What mechanism within the last 80 years could possibly be the driving factor behind evolutionary changes in peoples feet size? Its not like people in the 1930s were dieing due to overly large feet, nor has foot size been a significant factor in mating sucess. People are taller today too, but that isn't because tall people use to die more often or was once considered unattractive, it is mostly because of better nutrition thanks to far more varied and reliable diets.
1 comments

It's very likely that there's a simple switch (i.e. not much more than a couple of mutations required) which governs finger/toe length in primates. For example, did you know all the DNA for growing a "Lizard Leg" (the ENTIRE leg) is still in all snakes, but just just not activated, because one other mutation is blocking it?

There are many known genetic conditions that we see even in modern times, caused by one or two mutations which can cause very long fingers/toes, and people in this thread are arguing that even in 23000 years nature can't land on that mutation and stick to it, _especially_ when we _know_ the DNA for it is likely still there because we're all apes 98% identical to monkeys for example, which have the long toe thing.