Researchers are at a loss for why people across cultures and ages, regardless of their dominant hand, have a natural bias toward wandering in a counterclockwise direction.

New research from the University of Oxford and the University of Reading suggests bipedalism and expanding brain size helped drive the overwhelming dominance of right-handedness in humans.

The post Upright Walking and Larger Brains May Explain Why 90% of Humans Favor Their Right Hand appeared first on Sci.News: Breaking Science News.