Add Yahoo as a preferred source to see more of our stories on Google. Soldiers in Alaska recently tested the Army’s new rifle and automatic rifle in -35 F conditions as the weapons approach official ...

The United States has built some of the most powerful weapons in history, but not all of them were practical to use. In the race for military dominance, especially during the Cold War, engineers and ...

Some of the most powerful weapons ever developed by the United States were designed to dominate the battlefield, but in doing so they came dangerously close to exceeding the limits of practical use.

NOVA: Extreme Animal Weapons From lobster claws and dog teeth to bee stings and snake fangs, every creature depends on a weapon. But some are armed to extremes that make no practical sense - whether ...

(This program is no longer available for online streaming.) From lobster claws and dog teeth to bee stings and snake fangs, every creature depends on a weapon. But some are armed to extremes that make ...