Some images need little in the way of introduction. This one shows a soldier climbing a rope ladder attached to a helicopter above infested waters. Soldier. Rope ladder. Helicopter. Sharks. Wow.
Originally captured way back in 1996, this images was recently picked from the US National Archives in honour of Shark Week. The original caption read: "A soldier grips the rope ladder extended from the rear of a helicopter as a shark fin passes in the water close below." Kudos to that soldier.