Future Soldiers Could Go to War Wearing Fish-Scale Armor

Piranha have a well-earned reputation for being able and willing to eat just about anything in their path. One of the few exceptions is the Arapaima, a six-foot long, 300-pound Amazonian predator with bony scales capable of withstanding the toothy onslaught. Researchers are now working to adapt the Arapaima's defenses… » 2/11/12 1:00am 2/11/12 1:00am