Why do we have eyes, ears, hands, legs, lungs, kidneys, and more in pairs: Did nature give us an inbuilt backup?
The Blueprint of Symmetry: Humans follow a concept called bilateral symmetry, meaning the body is divided into two nearly identical halves, left and right. This design dates back over 500 million years, when early animals evolved a forward-moving body plan that required balance, coordination, and directional movement. Instead of being randomly assembled, our bodies were…