An pagkakaiba han mga rebisyon han "Tamsi"

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Bagis 89:
Nagdaramo an ''avialans'' sin magkadurudilain na porma sadton ''Cretaceous Period''.<ref>Chiappe, Luis M. (2007). Glorified Dinosaurs: The Origin and Early Evolution of Birds. Sydney: University of New South Wales Press. ISBN 978-0-86840-413-4.</ref>
 
== Anatomiya ==
 
Kompara san iba na ''vertebrates'', an tamsi may ada kalawas na may kakaiba na ''adaptations'', para san iya paglupad.
 
===Sistema Skeletal===
An skeleton san tamsi amo in mag-gaan na mga tul'an. May mga dagko na luho o ''cavities'' ini na puno sin hangin na gintatawag na ''pneumatic cavities'' ngan naka konekta sa respiratory system.<ref>Ehrlich, Paul R.; David S. Dobkin; Darryl Wheye (1988). "Adaptations for Flight". Birds of Stanford. Stanford University. Retrieved 13 December 2007. Based on The Birder's Handbook (Paul Ehrlich, David Dobkin, and Darryl Wheye. 1988. Simon and Schuster, New York.)</ref> Bug'os an bungo san arog na tamsi ngan wara makikita na ''cranial sutures''.<ref>Gill, Frank (1995). Ornithology. New York: WH Freeman and Co. ISBN 0-7167-2415-4.</ref>
 
== Mga kasarigan ==