Spriggina floundersi, a marine species that lived during the Ediacaran period 550 million years ago, is one of Earth’s earliest bilaterally symmetrical animals.

The post Ediacaran Sea Creature May Hold Earliest Evidence of Right-Handedness appeared first on Sci.News: Breaking Science News.

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.