title: Mammalian limbs take flight.
abstract: Tetrapod limbs display a great variety of forms and functions. In an attempt to understand factors influencing this diversity, Cretekos and colleagues, in a recent issue of Genes & Development, provide molecular insight into the evolution of wing morphology in bats.
authors.affiliation: Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA. scott.weatherbee@yale.edu
authors.forename: Scott D
authors.initials: SD
authors.lastname: Weatherbee
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002685:Chiroptera / Q000033:anatomy & histology; D005121:Extremities / Q000033:anatomy & histology*; D005426:Flight, Animal; D005552:Forelimb / Q000033:anatomy & histology; D005786:Gene Expression Regulation; D018398:Homeodomain Proteins / Q000235:genetics; D008322:Mammals / Q000033:anatomy & histology*; D051379:Mice; D012045:Regulatory Sequences, Nucleic Acid
chemical_list: D018398:Homeodomain Proteins; C489936:Prrx1 protein, mouse