Repercussions of human pressure ripple from the edges to the center of an enormous protected area.
Scientists explain the lime green look of spring.
When the foraging sea mammals crack shells to collect food, they produce distinctive evidence.
Despite conservation efforts, close assessment of Pando reveals significant losses.
They probably evolved to make mushroom-eating insects lose their appetites.
Researchers find that wildfires are responsible for up to 20 percent of water flowing in some Western U.S. streams.
As erosion claims land, local scientists explore using oysters to preserve parts of the Mississippi delta.