| | Evolution of feathers - EvoWiki (Site not responding. Last check: 2007-10-12) |
 | | Feduccia (1985, 1996) has incorrectly expressed this dichotomy as one between adherents of the arboreal origin of flight and terrestrial origin of flight, but it is more accruately considered in terms of adaptation and exaptation. |
| | In contrast to this view is that first elucidated by Ostrom in a series of publications in the 1970s in which it was postulated that feathers originally appeared to insulate endothermic proavians and were only later exaptated for flight. |
| | This idea found popular support in the work of Robert Bakker (Bakker 1975, 1986), and has since become the leading explanation for the original context in which feathers or feather precursors appeared, whether this is merited or not. |
| wiki.cotch.net /index.php/Evolution_of_feathers (3202 words) |
