Search results
Results from the WOW.Com Content Network
Confuciusornis is an example of their trend. While keeping the clawed fingers, perhaps for climbing, it had a pygostyle tail, though longer than in modern birds. A large group of birds, the Enantiornithes, evolved into ecological niches similar to those of modern birds and flourished throughout the Mesozoic. Though their wings resembled those ...
The WAIR hypothesis, a version of the "cursorial model" of the evolution of avian flight, in which birds' wings originated from forelimb modifications that provided downforce, enabling the proto-birds to run up extremely steep slopes such as the trunks of trees, was prompted by observation of young chukar chicks, and proposes that wings ...
A turning point came in the early twentieth century with the writings of Gerhard Heilmann of Denmark.An artist by trade, Heilmann had a scholarly interest in birds and from 1913 to 1916, expanding on earlier work by Othenio Abel, [12] published the results of his research in several parts, dealing with the anatomy, embryology, behavior, paleontology, and evolution of birds. [13]
The shared history of birds and dinosaurs is well-established, but exactly how true birds evolved during the Mesozoic is a bit of a mystery. Adding to this conundrum are fossilized footprints of ...
Feduccia's research has focused on ornithology, evolutionary biology, vertebrate history and morphogenesis, and the tempo and mode of the Cenozoic vertebrate radiation. His early work in the 1970s focused on clarification of the evolutionary history of modern birds (), focusing, in particular, on the identification of conserved morphological characters that might elucidate phylogeny more ...
That would make flightlessness an example of convergent evolution, when two species independently evolve the same traits, like hard shells in different kinds of pill bugs or fingerprints in humans ...
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 . Bird flight includes multiple types of motion, including hovering, taking off, and landing, involving many complex movements.
Download as PDF; Printable version; In other projects Wikidata item; ... Pages in category "Evolution of birds" The following 11 pages are in this category, out of 11 ...