For the first time, bird flu has been detected in rats, the United States Department of Agriculture confirmed.

With many Bay Area health facilities still in the midst of weathering the current flu season, the World Health Organization is finalizing plans for the next vaccine.

Months after the collapse of the COP16 biodiversity conference, the world’s nations have salvaged a funding deal to protect ...

The U.S. is home to 63 national parks, which are areas of land protected by the federal government. How many of these parks ...