Ancient Fossils Show Earliest Evidence of Handedness

Scientists found old fossils of a creature called Spriggina that lived over 550 million years ago.

These fossils showed that Spriggina usually turned to the right when moving.

This is important because it shows that animals have preferred one side over the other for a very long time, even before they had limbs.

The researchers think this preference might have helped them escape predators faster.

They also think that Spriggina's body plan is similar to ours, with a front, back, left, and right side.

However, they are not sure why Spriggina preferred turning right.