Look at your fingertips.

The ridges may seem simple.

But those tiny patterns are the result of an incredibly complicated process that begins before you are even born.

Every fingerprint contains loops, whorls, arches, ridges, valleys, and tiny details.

And although fingerprints are strongly influenced by genetics, the exact pattern that develops on each finger is shaped by a mixture of biology, growth, and microscopic conditions inside the womb.

So why are no two fingerprints exactly alike?

In Why No Two Fingerprints Are the Same, we explore the science behind one of the most recognizable patterns on the human body.

We begin with the basics.

The raised lines on your fingertips are called friction ridges.

They help your fingers grip objects and interact with sur ...