"Theory of flight" redirects here. For the film, see The Theory of Flight.
The Berlin Archaeopteryx, one of the earliest known birds.
Around 350 BCE, Aristotle and other philosophers of the time attempted to explain the aerodynamics of avian flight. Even after the discovery of the ancestral bird Archaeopteryx which lived over 150 million years ago, debates still persist regarding the evolution of flight. There are three leading hypotheses pertaining to avian flight: Pouncing Proavis model, Cursorial model, and Arboreal model.
In March 2018, scientists reported that Archaeopteryx was likely capable of flight, but in a manner substantially different from that of modern birds.[1][2]
^Voeten, Dennis F.A.E.; et al. (13 March 2018). "Wing bone geometry reveals active flight in Archaeopteryx". Nature Communications. 9 (923): 923. Bibcode:2018NatCo...9..923V. doi:10.1038/s41467-018-03296-8. PMC 5849612. PMID 29535376.
^Guarino, Ben (13 March 2018). "This feathery dinosaur probably flew, but not like any bird you know". The Washington Post. Retrieved 13 March 2018.
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originofavianflight rested in a predatory behaviour, the "proavis" jumping on its prey from trees (see pouncing proavis model in Originofavian flight)...
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fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal...
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paired fins located on the ventral (belly) surface of fish, and are the lower of the only two sets of paired fins (the other being the laterally positioned...
organism Originof programmed cell death – Death of a cell mediated by intracellular program, often as part of development Originofavianflight – Evolution...
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locomotion, and rarely in terrestrial locomotion. From the three common states of matter — gas, liquid and solid, these appendages are adapted for liquids,...
would eventually give rise to the originofflight in avian species. The following cladogram follows the results of a phylogenetic study by Cau (2020)...
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knobs, the attachment point for flight feathers found in some modern birds and non-avian dinosaurs. However, re-evaluation of the fossil material by subsequent...
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