Look into this paper. You are getting very sleepy...

Snowflakes 101 -- inspired by the snowflake story in Radiolab's new episode Bliss, a little backstory on how snowflakes form. Plus lots of sparkly pictures.

We start with a pool of oil. We turn on a magnet. The oil travels up a superstructure and blossoms into a tree. Turn off the magnet, the branches, the needles, the tree melt away. It's a puddle again.

Chris Berube -- intrepid Radiolab intern, and monolinguist -- sets aside his ego to delve into a listener's question about intelligence and speaking more than one language.

Alzheimer's is the disease that creeps in and slowly erases what you know until, eventually, there's no more to erase. How this happens is still a mystery, but this short animation by Po Chou Chi tries to make poetic sense of what goes on.

There you are, hanging with the other pigeons. It's a sunny day. Tranquil. You are taking a bird bath along a river's edge, when suddenly, leaping out of the water onto the land, straight at you — is a fish! A pigeon-eating catfish. (We've got pictures.)

Lulu's new blog post explains the origins of "struggle pumps," one of her favorite new phrases, in order to get you fired up for two big word creation contests whose deadlines are fast-approaching.

Dashboard video cameras are common in Russia. In case you get bumped into, or bump someone else, insurance companies want to see what happened. So we have a video record of what it's like to drive there. You don't want to see this compilation video. (Oh yes you do.)

Where's the bus? It's supposed to be here by now, but it isn't. You crane your neck. Nothing. And then — miraculously — there's a solution. The bus still isn't here. But something else is.

We don't know about you, but we've got a giant trampoline, a burger refill denied, and buffaloing English grammar on our minds...

It's a tombstone like no other. A rough, clumpy hunk of granite, carried across Europe on a sea of ice, dumped in a valley, shipped across the Atlantic, lugged to Massachusetts — all to honor a restless man.

Ever wonder why so many of the inheritance studies are about men? Molly Webster had that question too...

"The President" is a 3,200-year-old giant sequoia that clocks in at 247 feet tall and counting. And contrary to most living things we can think of, giant sequoias grow faster later in life than earlier in life.

YouTube

It's You Tube's 17^th Most Viewed Video of All Time, and the 4^th Most Liked, "Somebody That I Used to Know," sung principally by Wouter "Wally" De Backer, also known as "Gotye," who took his clothes off and got a paintjob from designer Emma Hack.

Nikola Nikolovski/iStockphoto

We'll start in a cornfield — we'll call it an Iowa cornfield in late summer — on a beautiful day. The corn is high. The air is shimmering. There's just one thing missing — and it's a big thing...

This is your brain making things up.

What you see isn't really there.

Even if I tell you "this isn't what you think," you'll think it anyway -- until I make a simple move, and suddenly -- you know.

What happens when we go head to head with chickens -- pitting their gaze-steadying powers against our own? The answer involves a rigging a chicken steadicam, take a look.

Writer Elizabeth Giddens answers a listener's question about toddlers by pondering repetition, and how all sorts of activities seem to have a Goldilocks amount that's just right...and a "too much" threshold where things can turn transcendent, or get very troubling.

It turns out these little flashing studs of flesh used to do something very specific (and useful!) for us. Lulu Miller explains how goose bumps used to protect us.