A little of an aside: I've often wondered if motion sickness is less prevalent in populations that got to their current locations largely by long ship rides (i

A little of an aside: I've often wondered if motion sickness is less prevalent in populations that got to their current locations largely by long ship rides (i.e. most Americans). These days sea sickness is a mild inconvenience, but I would imagine that in the 1700s, constantly vomiting for several weeks would reduce one's chances of passing on their genes.