Linking the molecular evolution of avian
β
Matthew J. Greenwold; Roger H. Sawyer
π
Article
π
2011
π
John Wiley and Sons
π
English
β 181 KB
## Abstract Feathers of today's birds are constructed of beta (Ξ²)βkeratins, structural proteins of the epidermis that are found solely in reptiles and birds. Discoveries of βfeathered dinosaursβ continue to stimulate interest in the evolutionary origin of feathers, but few studies have attempted to