That little dent in the middle of your stomach isn’t just a quirky reminder of your time in the womb, it’s potentially one of the most bacteria-packed spots on your entire body. Your belly button is ...

Some of the nastiest bacteria that thrive in the human gut and make us sick may have evolved from hardy ancestors living deep under the sea, a group of Japanese scientists found. Writing in the latest ...

The bellybutton is a comfy hiding space for myriad bacteria seeking shelter from ultraviolet rays, soaps, detergents, sweat and other dangerous body secretions. Nina Rountree, an undergraduate in ...