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.
That seems to be what separates a high-performing Marine from eventually becoming a combat casualty, according to new research carried out by a Marine captain at the Naval Postgraduate School.
award-winning master's thesis, titled Paying For Weight In Blood: An Analysis of Weight and Protection Level of a Combat Load During Tactical Operations, Capt. Courtney Thompson argues that being able to move faster is more important against near-peer enemies in combat, and the all-too-common trend of burdening troops with heavier loads can lead to an increase in casualties.