a Sunday puzzler

If you appreciate the brilliant beauty of National Geographic photographs and found the jigsaw puzzle from last week a fun way to stimulate your brain on the weekend, here is a link to a bigger challenge: Choose a National Geographic photo of your choice and generate a jigsaw on the fly: an almost pure white snow scene – for those of you who are expert jigsaw puzzlers! – or a photo filled with a thousand colors for an easier solution. Be sure to look at the picture closely and intently before you start. Happy Sunday!

Problem-Solving Chimps

Who doesn’t love a good animal story? This is even better: chimpanzees solving problems! Check out this interesting, brief clip

from National Geographic's "Ape Genius" documentary.