A worm that lived half a billion years ago preferred turning right

Scientists have uncovered fossils of Spriggina floundersi that reveal a preference for turning right, suggesting the earliest evidence of asymmetrical behavior in animals. This finding implies that even simple organisms had complex nervous systems similar to those of modern animals, including humans. Understanding this ancient behavior provides insight into the evolution of the nervous system and the development of handedness, which is crucial for comprehending how complex behaviors and brain functions emerged over geological time.