The Tupolev TB-3 was a heavy bomber aircraft which was deployed by the Soviet Air Force in the 1930s and during World War II. It was the world's first cantilever wing four-engine heavy bomber. Note: Airborne troops in picture jumping from wing.
Some treehoppers have a modified carapace that mimics agressive foul tasting ants . The genes that are expressed in the developing 'helmet' are the same as crucial genes expressed in wing development , so the 'helmet' is a re-expression of a repressed wing structure .