Fastest animals
The fastest land animal is the cheetah, which has a recorded speed of . The peregrine falcon is the fastest bird and the fastest member of the animal kingdom with a diving speed of . The fastest animal in the sea is the black marlin, which has a recorded speed of .
Frank Kendall Everest Jr.
Everest test-flew the Bell X-1B to a speed of Mach 2.3 (2.3 times the speed of sound) in December 1954, making him the second fastest man in the world, Later flights in the Bell X-2 rocket plane established him as "the fastest man alive" when he attained a new unofficial speed record of 1,957 mph or Mach 2.9.