7 Facts About Brothers That Will Blow Your Mind

There's a reason why the exclamation "Oh, brother!" exists rather than "Oh, sister!" It's because brothers are a force of nature, creating a vortex that's felt far and wide in a family. Anyone with a brother knows this, as well as moms whose broods include the male species. And now we've got indisputable scientific evidence this is true. Check out the surprising ways brothers impact their family members below -- like by attracting suitors for their sisters but then preventing them from having sex, turning their younger brothers gay, and more.

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Whoa, do you believe #6?

 

Image © Curi Hyvrard/Corbis

Behavior & Development boys