Nov 12th, 2008 · Using NASA satellite photos of Earth, we can calculate that the world supports roughly 61 trees per person. But are we using up our allotments? An Evergreen State College ecology professor and her students look at how we burn through wood-based resources.
Oct 16th, 2008 · Scientists at the University of Washington are reporting progress in the effort to restore movement in paralyzed limbs. Researchers working with monkeys used electrodes to connect individual brain cells to muscles in the animals' arms. The monkeys were able to use those brain cells to move their hands.
Sep 12th, 2008 · Scientists believe that a certain genetic sequence, which is uniquely unstable in human beings, may explain how humans became so good at using tools and walking upright. The gene sequence, named HACNS1, is thought to regulate both hand and limb formation in embryos.
Sep 4th, 2008 · Scientists are becoming increasingly aware of the importance of what used to be called "junk" DNA. Yale researchers have found a region of DNA that appears to be crucial in making a human limb. Although it's not a gene in the traditional sense of the word, it is inherited.
Jul 18th, 2008 · A military band was about to start a review at Fort Riley, Kan., when three members took a tumble in front of a crowd. A skydiver with tangled lines had landed on top of them. And, in upstate New York, Scott Listemann is looking for his artificial limb after it flew off as he was skydiving.
Apr 5th, 2008 · Salamanders have amazing abilities to renew and regenerate themselves. Research biologist David Gardiner talks to Andrea Seabrook about why salamanders can regrow limbs and humans can't.
Oct 25th, 2007 · Balad Air Base in Iraq has the most advanced forward-operating combat hospital in the history of warfare. What the trauma doctors see is intense. A single patient may have shrapnel embedded in the body, massive chest wounds and missing limbs.
Aug 1st, 2007 · Stimulating electrodes in the brain of a minimally conscious person made him more able to talk, chew, swallow, and move his limbs. Doctors tried the experimental treatment on a man left severely brain damaged after an assault more than six years ago.