Why do females have boobs

I have to get something off my chest pun intended : Having big boobs kind of sucks. I first developed breasts when I was 9 years old. By the time I was 15, my breasts were a DD on my small girl frame. I was young, and big boobs made me look and feel more grown. I felt lucky to have them.
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The science of why human breasts are so big

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Kids' Health - Topics - Breasts - info for girls who are nearly teens

The breast is one of two prominences located on the upper ventral region of the torso of primates. In females, it serves as the mammary gland , which produces and secretes milk to feed infants. At puberty , estrogens , in conjunction with growth hormone , cause breast development in female humans and to a much lesser extent in other primates. Breast development in other primate females generally only occurs with pregnancy. Subcutaneous fat covers and envelops a network of ducts that converge on the nipple , and these tissues give the breast its size and shape.
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New Theory on Why Men Love Breasts

Breasts come in different shapes and sizes, but there's one thing they all have in common: They are unique to humans. More than 5, mammalian species inhabit this planet. Yet Homo sapiens are the only life forms with permanent breasts. Some may call this human anomaly sexy, but it also raises the question: Why are human breasts so big?
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In the primate world, plump breasts last only as long as breastfeeding doesexcept in humans. Women are busty all the time, even after menopause. According to some scientists, the trait is an evolutionary trick for snagging men and signals a woman's ability to feed her children.
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