• Wikipedia - flight

Flight is the process by which a heavier-than-air animal or object achieves sustained movement either through the air by aerodynamically generating lift or aerostatically using buoyancy, or movement beyond earth's atmosphere, in the case of spaceflight.

The most successful groups of living things that fly are insects, birds, and bats. Each of these groups' wings evolved separately from different structures. See also Bird flight.

Pterosaurs were a group of flying vertebrates contemporaneous with the dinosaurs.

• flight BLOGS
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