PART ---TWO WHY DO MEN HAVE NIPPLES? Men and women are built from the same template, and these are just a remnant of a man’s early development . WHAT’S THE POINT OF EYEBROWS? Read here part-- one part-- three Biologically, eyebrows can help to keep sweat and rainwater from falling into your eyes. More importantly in humans, they are key aids to non-verbal communication . WHAT IS A BELLY BUTTON? The umbilicus is where a baby’s blood flows through to get to the placenta to exchange oxygen and nutrients with the mother’s blood. Once out, the umbilical cord is clamped several centimeters away from the baby and left to fall off. No one quite knows why you’ll get an ‘innie’ or an ‘outie’ – it’s probably all just luck. WHY IS IT THAT FINGERNAILS GROW MUCH FASTERTHAN TOENAILS? The longer the bone at the end of a digit the faster the growth rate of the nail. However there are many other influences too nutrition, sun exposure, activity, bloo
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