Flight
Videos
Flight or flying is the motion of an object through an atmosphere or through the vacuum of space, in this case also called spaceflight, without contacting any planetary surface. This can be achieved b
Bird flight by a brown pelican.
Human-engineered flight: a United Airlines Boeing 787 taking off from Heathrow Airport in December 2013.
An airship flies because the upward force, from air displacement, is equal to or greater than the force of gravity
Female mallard duck
Bird flight
Videos
Bird flight is the primary mode of locomotion used by most bird species in which birds take off and fly. Flight assists birds with feeding, breeding, avoiding predators, and migrating.
Flight
…natural selection because it was an effective means of escape from underwater predators. The longest recorded flight of a flying fish was 45 seconds. Most birds can fly, with some exceptions. The largest birds, the ostrich and the emu, are earthbound flightless birds, as were the now-extinct dodos and the Phorusrhacids…
A flock of domestic pigeons each in a different phase of its flap
The ruby-throated hummingbird can beat its wings 52 times a second.
A young tundra swan runs atop the water while taking off
A magpie-goose taking off