We consider the distribution of the intermediate filaments (IFs) in the retinal cells of the Pied flycatcher (Ficedula hypoleuca, Passeriformes, Aves) in the foveolar zone, which has the most specialized morphology, where the passerines have neither the rods nor the second-order neurons that service these rods, with only the single and double cones acting as photoreceptors. We report that singl...

A Escherichia coli é uma bactéria gram-negativa presente no intestino de aves e mamíferos, geralmente sem causar danos ao hospedeiro (Croxen et al., 2013).

Ginger L. Milne, Huiyong Yin, and Jason D. Morrow Division of Clinical Pharmacology, Departments of Medicine and Pharmacology Vanderbilt University School of Medicine, 23 Avenue South at Pierce Avenue, Nashville, TN 37232-6602 Address correspondence to: Jason D. Morrow M.D., Division of Clinical Pharmacology, Departments of Medicine and Pharmacology, Vanderbilt University School of Medicine, 23...

MORTON L. ISLER, GUSTAVO A. BRAVO & ROBB T. BRUMFIELD 1Department of Vertebrate Zoology—Birds, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, USA 2Museum of Natural Science and Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA 3Current address: Seção de Aves, Museu de Zoologia, Universidade de São Paulo, Caixa Postal 42...