Thursday we learned that first born children tend to score higher on IQ tests than their younger siblings. Wonder why?

Friday we answered the age old question of "Why is pee yellow" and also learned that we could soon be wearing tires on our feet.

Saturday we learned of an interesting reason to get dirty...it just might make you feel better.

Ever wonder why we yawn? Well, on Sunday we learned that it's kind of like air conditioning for your brain.

Monday we learned that as society becomes more urban, India will have 400 million agricultural refugees.

Yesterday we got another reason to enjoy a summer BBQ. Eating potato salad may help your immune system.

Today we learned that Arnold Schwarzenegger really is determined to save the planet.

Until next week, clip on.