17 Sexy Science Facts To Liven Up Parties

16. Brazil Nuts Are Sexually Transmissible

As if having an allergy wasn't inconvenient enough, sufferers also have to watch out for nuts in the bedroom (no, not that kind of nuts).

Clinical tests have confirmed that the proteins in brazil nuts are actually sexually transmissible, such as in this documented case of a 20-year-old woman suffering from a near-fatal allergic reaction after having sex with her boyfriend who had been snacking on them previously. It was initially thought that she must have picked it up from his mouth or hands, but a "skin prick" test using his semen (ew), proved that the nuttiness was indeed coming from his very own nut butter.

This definitely sounds like a House M.D storyline.

15. Kangaroos Flex Their Biceps To Attract Females

We all know that dude who loves to flex for the ladies, but the chances are that he's got nothing on kangaroos.

These famously stacked marsupials are nothing like Skippy, and have been found to flex their biceps in order to entice the lady kangaroos in the vicinity. Male kangaroos use thier jacked arms to both fight other males off, and show the girls just how manly they are. If all else fails then, according to Rod Wells, a kangaroo expert, they are "strong enough to overpower any unwilling female.” (Not cool, guys.)

Bonus kangaroo fact: female kangaroos have three vaginas.