Poison frogs appear to have built their chemical defenses gradually: related frogs store low to moderate levels of ...

Military weapons don’t change unless the battlefield forces them to. For Navy SEALs, that pressure came as warfare moved indoors, after dark, and into environments where adaptability mattered more ...

Poison frogs are small and brightly colored amphibians that originate from Central and South America. As suggested by their ...

This story has been corrected. The U.S. Army has shelved its “Valkyrie” laser anti-missile system, shifting instead to the newer Joint Laser Weapon System, to be built with the Navy as part of the ...

FORT BENNING, Georgia–U.S. military leaders at the forefront of troops’ training, health, and readiness are shifting their focus from creating "super-athletes" to building and maintaining the ability ...