This town's not big enough for two hypothetical placental ancestors. Both Mancestor AND Schrëwdinger were caught sporting the same gown over the weekend. Who wore it better?

This is the moment all you placental ancestor lovers have been waiting for: we're down to the final two pop culture monikers for the little hairy beast. Who'll it be? Schrëwdinger (is she our oldest common ancestor, is she not), or Mancestor (the ancestor of man)? Cast your ballot below, and keep an eye out for these two common ancestors on the street, trying to grab your vote...

You probably know the feeling: You turn on your computer, decide to mosey around, but only for a minute or two, you have important things to do, and then — whooooosh! The computer sucks you in and you can't stop clicking. Why does this happen? Artist Dina Kelberman knows why. Let her trap you.

Bursting broods of bugs and ... beer? Believe it! The 17-year cicadas are coming, and Radiolab is inviting armchair scientists, lovers of nature and DIY makers to help predict the emergence of cicadas by building a homemade sensor and sharing your observations.

Our Bliss episode (which airs across the country this week) begins with a perfect moment -- polar adventurer Aleksander Gamme finding a hidden stash of utter happiness under the ice at the end of a 3-month trek in the South Pole. And it was all caught on camera.

Some of the best science reporters, like the best Vaudevillians, the best circus performers, the best teachers, are hungry for attention — not for themselves, but for a way to seize your mind, to bring you to an idea, a puzzle, or a creature.

You don't expect fourth-graders to be wise. They're still boys. But one, who was playing and ruminating on his back patio, had a knack for cosmology seemingly well beyond his years.

On-the-street sources say that a creature -- it appears to be our hypothetical common ancestor -- was seen trying to get a passport this morning.

Out of over 1,000 potential names for our hypothetical placental ancestor, there are only four (FOUR!) left.

Producer Lynn Levy is STILL waiting for one of the Voyager crafts to make interstellar history as the first human-made object to leave the solar system...

There are only eight contenders left to name your ancestor. And Round Three starts... NOW!

This spring, parts of the East Coast will turn squishy and crunchy -- the return of the 17-year cicadas means surfaces in certain locations (in patches from VA to CT) will once again be coated in bugs buzzing at 7 kilohertz. In their honor, we're rebroadcasting one of our favorite episodes: Emergence.

When producer Hannah Palin recorded her infant sleep journal for our Sleep episode, I wasn’t yet a parent. I listened to it, and while I felt sympathy for her predicament, it didn’t raise any kind of anguished emotional response. But now, I feel sick to my stomach when ...

Take our informal sleep survey, and if you've got some friendly advice on how to drift off, don't keep it to yourself!

Sandy Island, located in the Pacific Ocean off the coast of Australia, occupies about about 45 square miles of the Coral Sea. It was documented in 1772 and appeared on a 1908 admiralty chart and in Google Maps. The problem is, Sandy Island never existed.

Lulu Miller's personal take on pies, in honor of Pi Day.

Today is March 14, or "3/14," the first three digits of Pi. It's a day celebrated around the (geek) world as "Pi Day." So here's the pie version of Pi, the down, dirty and baked goods approach, illustrated by Brady Haran, a video journalist who loves numbers.

It's bracket time, baby, mammal madness style.