Eyebrows

If you look at sketches of homo erectus you'll see some seriously bushy eyebrows, maybe even a monobrow.  I'm a scientist so I'm pretty sold on the whole evolution thing.  I'm convinced that big furry eyebrows were beneficial to Cro-Magnon guy.  You can imagine the unfortunate results of having sweat drip into your eye just as you're throwing a spear at a charging mammoth.  Darwin says that natural selection is going to favor the big eyebrow guys.  But then something happened.  Maybe Cave Joe stared at Cave Jane's monobrow for just a couple of seconds too long on their second date and Cave Jane spent the next day with Cave Sue and Cave Betty obsessing about why Cave Joe hadn't called her yet and it must be because of her hideous eyebrows that make her look fat and thus began the painful rituals of plucking and waxing.  Whatever the cause the modern day females favor thin, tailored brows to the prehistoric bushy ones (except for the occasional Brooke Shields) and for the most part this works for them.  However, evolution is a sneaky little thing.  It would appear that those fuzzy eyebrows still do serve a purpose.  That is, at least in some situations like, say, when you go out running when it's 70 degrees and 96% humidity.  And while there were no charging mammoths the sweat still stings when it gets in your eye.  Damn Cave Joe.  I knew there was a man to blame for all of this.