Blog del USDA

Odin is a Labrador retriever/border collie mix. By watching his wagging tail and alert expression, Colorado State University researcher Dr. Glen Golden can sense he is eager to begin his training. Odin is one of five dogs recently adopted from shelters and animal rescue centers to become detector...

Immobile and long-lived, trees endure extreme weather, fires, and pests for tens, hundreds, and even thousands of years. In Fishlake National Forest, Utah, there is a quaking aspen colony spanning 106 acres that is roughly 80,000 years old. To give you a sense of scale, if the average human lives 79...