WASHINGTON (Reuters) - One of the world's largest freshwater fish is protected by the natural equivalent of a "bulletproof vest," helping it thrive in the dangerous waters of the Amazon River basin with flexible armor-like scales able to withstand ferocious piranha attacks.
Researchers from the University of California, San Diego and University of California, Berkeley on Wednesday described the unique structure and impressive properties of the dermal armor of the fish, called Arapaima gigas. They said their findings can help guide development of better body armor for people as well as applications in aerospace design.
U.S. military aircraft dropped more bombs and fired more missiles in Afghanistan last month than it has in nearly a decade, Air Force statistics show.
In September the U.S. military dropped 948 munitions in Afghanistan, according to U.S. Air Forces Central Command's latest summary of wartime missions. The last time so much ordnance was used in Afghanistan was October 2010, when the coalition tracked 1,043 weapons releases.