𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The evolution of avian migration

✍ Scribed by ROBERT M. ZINK


Book ID
110774252
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
784 KB
Volume
104
Category
Article
ISSN
1095-8312

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## Abstract Feathers of today's birds are constructed of beta (Ξ²)‐keratins, structural proteins of the epidermis that are found solely in reptiles and birds. Discoveries of β€œfeathered dinosaurs” continue to stimulate interest in the evolutionary origin of feathers, but few studies have attempted to