Scientists say they have figured out how a very clever virus outwits a very hungry caterpillar.The caterpillar is the gypsy moth in its larval stage, and the invasive species damages roughly a million acres of forest in the U.S.
Micronesian islands have declared vast areas of the Pacific Ocean to be a sanctuary for sharks. It's the latest move in a trend to create zones where sharks can live undisturbed.These top predators are in serious decline around the world because they are being over-fished.
In the high Andes of South America, one of the world's great birds is making a comeback.The condor is returning from the brink of extinction, thanks to a program in which condor chicks are raised in American zoos and then released in the wild.
Michele Norris speaks with Dorien Schroeder, a team leader with Ocean's Research, who lived a Jaws-like moment when a great white jumped on deck of her team's research boat after they threw fish into the water to lure sharks closer.
Each summer thousands of salmon can be seen shooting upstream at the mouth of the Columbia River in Oregon and into Washington state. Sea lions congregate there. They think of the salmon migration as a buffet.Sea lions are protected species, but salmon are endangered.
This story is first in an ongoing series called Honey, Stop The Car: Monuments That Move You, which checks out memorials across the country that inspire drivers to pull over.Growing up in Union County, a farming region in southern Illinois, I heard stories about this enormous 700-p