In Australia a woman gave birth to an incredibly rare set of semi-identical twins. Her egg did something a woman's egg is never supposed to do.

Also, have we finally figured out why zebras have stripes? Would you believe it's to mess with bugs?

And it's possible that a giant, mysterious planet, ten times the size of Earth, is lurking far outside the orbit of Pluto. But we may not see it for thousands of years.

Check out all the delicious show notes for this episode at DomTesta.com and scroll down to Newz for Nerdz.

Thanks to The Guardian, CNN.com, ScienceMag.org, and MSN for their stories this week.

Cheers to Charlie Keaton for the NFN love theme.