Karen Warkentin speaks admiringly of the eggs of red-eyed tree frogs because, for one thing, they know what’s shaking.
Masses of these glistening eggs hang on leaves that dangle over tropical ponds, and the eggs stay put even when branches thrash in storms. A hungry snake biting into one end of an egg mass can make the embryos’ home dip and dance too...
At least once a second, a dim, elderly star somewhere in the cosmos turns into a thermonuclear bomb. Briefly outshining its home galaxy, the explosion, known as a type 1a supernova, unleashes the equivalent of 1028 megatons of TNT — enough energy to destroy an entire solar system.Astronomers have marveled at these cosmic firecrackers for centuries. But so far nobody has explained in detail...
When the monitor lizard chomped into Bryan Fry, it did more than turn his hand into a bloody mess. Besides ripping skin and severing tendons, the lizard delivered noxious venom into Fry’s body, injecting molecules that quickly thinned his blood and dilated his vessels. As the tiny toxic assassins dispersed throughout his circulatory system, they hit their targets with speed and precision,...
In January, toxicologist Linda S. Birnbaum became director of the National Institute of Environmental Health Sciences, home to the National Toxicology Program, in Research Triangle Park, N.C. Birnbaum recently spoke with Science News writer Rachel Ehrenberg.07/31/2009 - 11:04
What areas would you like to see the institute zoom in on?
One of the things I’ve been really working on is to...
August 31–September 4
Scientists and policy makers meet at the World Climate Conference-3 in Geneva. Visit www.wmo.int/wcc3
IEEE Engineering in Medicine and Biology Society meeting in Minneapolis. See www.embc09.org
Educators explore new teaching methods at the Astronomical Society of the Pacific meeting in Millbrae...