Why do people have extra nipples?

Extra nipples were once thought to be a link to our evolutionary past, but the truth is a lot stranger, writes Jason G Goldman.

Why are a mans nipples not forbidden as a womans are? - Quora

The Reason Why Men Have Nipples

Supernumerary Nipple: Causes, Diagnosis, and Images — DermNet

Celebrities With Extra Nipples: Harry Styles & More – Hollywood Life

The truth about extra nipples

Third Nipple (Supernumerary Nipple): Causes, Types & Removal

Can men have inverted nipples? - Quora

Third nipple (photo proof) - Glow Community

Breast cancer - Wikipedia

This Is Why Some People Have Extra Nipples

supernumerary nipples - pictures, photos

Having A Third Nipple Is More Common Than You Think

Nipples: what's normal and why do we have them?

Celebrities With Extra Nipples: Harry Styles & More – Hollywood Life