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6 Little-Known Facts About Nipples

Nipples are more interesting than one would think.

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Evolutionary Awesomeness (or Trickery?)

Human females are the only mammals that develop breasts and nipples that remain full and prominent, despite the fact that they are not lactating. Every other mammal only experiences prominent development during pregnancy and lactation. 

Scientists speculate that the human female’s full breasts and erect nipples are a product of evolutionary development as a species. For other mammals, large breasts would be a sign that the female is lactating and not ovulating, and is therefore unavailable for procreation. Human females have developed ways of disguising when they are and are not fertile in order to confuse male mates and appear to be sexually desirable even when they are not ovulating. But we're also one of the few species that has sex just for fun! (Did you know that humans also have a hidden erogenous zone? Find out where it is in  Your Hidden Erogenous Zone.)

Triple Nipple

Every now and then, you'll come across someone with an extra nipple - it's not that uncommon! These "supernumerary" nipples are common in many species, including primates, rodents and ruminants. Guys have extra nipples more often than females; 1 in 18 males and 1 in about 50 females have extra nipples. And a very select numbers of people have as many five or six nipples. Extra nipples usually run down the abdomen, along the milk line, but they have also been found on other locations, like on a person’s foot. 

Whether they're big and bouncy or cute and pert, breasts - and their nipples - have a lot in common. But they're also all a little bit different, and a little unique. That means you'll have a little exploring to do, both with yourself, and with any new partner.

 
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