The U.S. Postal Service is turning 250. Saturday’s anniversary comes as the agency faces financial challenges.

It has grown from serving the 13 colonies to reaching nearly 169 million addresses and employing more than 635,000 people.

In a twist worthy of a detective novel, a long-misidentified fossil at Harvard's Museum of Comparative Zoology (MCZ) has ...

The fossil, Palaeocampa anthrax, was first described in 1865. Since then, it shifted labels—from worm to millipede to marine ...

SINCE THE DEADLY anthrax mailings more than a year ago, the government's public focus has shifted from the crime to measures necessary to combat bioterrorism and make such attacks more difficult ...

Anthrax spores can cause fatal illness if inhaled and Dugway is a major production and testing facility for the military's chemical and biological defense programs.

The anthrax used in last October's US mail attacks was treatable, but future strikes could be worse. "Any sophisticated terrorist could easily engineer strains to be resistant to antibiotics ...

Anthrax emerged as a biological weapon in Europe in World War I. Japan began producing the bacteria for use as a weapon in the 1930s. The United States experimented with biologic agents such as ...

Anthrax is a rare but serious illness caused by a spore-forming bacterium, Bacillus anthracis, the statement said, adding that the disease mainly affects livestock and wild animals.

Anthrax vaccines are available for animals and select high-risk individuals, though human vaccines remain limited in availability. The first alert of the outbreak in the DRC this year was issued ...

Focus on anthrax . Recent events have confirmed that bioterrorism is no longer a threat but a reality. To provide wide-ranging access to the latest scientific information about anthrax and other ...