| |
Learning to Fly: How Birds Took to the Air - EvoWiki (Site not responding. Last check: 2007-11-01) |
 | | Bock hypothesized that powered flight was derived through a bipedal cursor taking to the trees, parachuting, then gliding, and then increasing the glide path via flapping. |
| | Grafted onto this basic conceptual skeleton were other significant alterations of the basic reptilian bauplan associated with the transition to birds (e.g., the advent of homeothermy and feathers). |
| | Following his description of Deinonychus antirrhopus (1969) and extensive reviews of the morphology and phylogenetic status of Archaeopteryx lithographica (e.g., 1976a, b), John H. Ostrom of the Yale Peabody Museum advocated as a corollary of his resurrected theropod origin of birds, a modified cursorial origin for bird flight. |
| wiki.cotch.net /index.php/Learning_to_Fly:_How_Birds_Took_to_the_Air (4793 words) |
