Carolyn McGraw In the center, the unmanipulated photo. With the less cute manipulated photo to the left, and the cute one to the right. . . . More

The primary visual cortex (V1) highlighted in yellow. The bottom view is from a mid-section of the brain, the top view is from the outside. In both views, your eyes would be on the left. Source. . . . More

Yes, really. On the left is the skull of a woodpecker, where the hyoid can be seen extending up from behind the skull. On the right labeled (b) is the woodpecker hyoid bone by itself. . . . More

Happy holidays, everyone! It's a time of eating lots of delicious food, spending time with friends and family, and celebrating long-held traditions. For many, it's also a time of finding their way back home, whether it's in the town where they grew up, or in the company of loved ones (or both). This also means that for many, it's a time of airports and cars and lots of frustrating travel. For us humans, navigating home involves making reservations, getting on a plane in one city and landing in another. Or it means climbing into the car, punching in an address in the GPS, and hitting the gas. But what does getting home mean for other animals? They don't have a GPS with a vaguely snarky voice to tell them which way to turn, nor do they have massive(ly disorganized) transportation hubs in major cities that quickly shuttle them back and forth to destinations. So what happens when you take an animal, put it somewhere where it's never been, and let it try and find its way home?

That's actually a pretty big question when it comes to animal navigation. Different animals have very different ways to navigate--for example, some use the position of the sun to orient themselves. Others can see polarized light, and use that to navigate home . . . More