| | This journal provides immediate access to some articles. Research Articles Facial ontogeny in Neanderthals and modern humans Markus Bastir, Paul O'Higgins, and Antonio Rosas PMCID: PMC2189570 Seasonality and the persistence and invasion of measles Andrew J.K Conlan and Bryan T Grenfell PMCID: PMC1914306 Enigmatic dual symbiosis in the excretory organ of Nautilus macromphalus (Cephalopoda: Nautiloidea) Mathieu Pernice, Silke Wetzel, Olivier Gros, Renata Boucher-Rodoni, and Nicole Dubilier PMCID: PMC2189564 Evidence that pigeons orient to geomagnetic intensity during homing Todd E Dennis, Matt J Rayner, and Michael M Walker PMCID: PMC2189574 Early Tertiary mammals from North Africa reinforce the molecular Afrotheria clade Rodolphe Tabuce, Laurent Marivaux, Mohammed Adaci, Mustapha Bensalah, Jean-Louis Hartenberger, Mohammed Mahboubi, Fateh Mebrouk, Paul Tafforeau, and Jean-Jacques Jaeger PMCID: PMC2189562 Environmental and historical constraints on global patterns of amphibian richness Lauren B Buckley and Walter Jetz PMCID: PMC2189569 The mystery of Etruscan origins: novel clues from Bos taurus mitochondrial DNA Marco Pellecchia, Riccardo Negrini, Licia Colli, Massimiliano Patrini, Elisabetta Milanesi, Alessandro Achilli, Giorgio Bertorelle, Luigi L Cavalli-Sforza, Alberto Piazza, Antonio Torroni, and Paolo Ajmone-Marsan PMCID: PMC2189563 Altruism towards cousins Joonghwan Jeon and David M Buss PMCID: PMC2189565 Topography, energy and the global distribution of bird species richness Richard G Davies, C. David L Orme, David Storch, Valerie A Olson, Gavin H Thomas, Simon G Ross, Tzung-Su Ding, Pamela C Rasmussen, Peter M Bennett, Ian P.F Owens, Tim M Blackburn, and Kevin J Gaston PMCID: PMC2189561 Competition moderates the benefits of thermal acclimation to reproductive performance in male eastern mosquitofish Robbie S Wilson, Edd Hammill, and Ian A Johnston PMCID: PMC2189567 Disease transmission by cannibalism: rare event or common occurrence? Volker H.W Rudolf and Janis Antonovics PMCID: PMC2189571 Post-mating disparity between potential and realized immune response in Drosophila melanogaster Kenneth M Fedorka, Jodell E Linder, Wade Winterhalter, and Daniel Promislow PMCID: PMC2189566 Spreading free-riding snow sports represent a novel serious threat for wildlife Raphaël Arlettaz, Patrick Patthey, Marjana Baltic, Thomas Leu, Michael Schaub, Rupert Palme, and Susanne Jenni-Eiermann PMCID: PMC2189568 Sexual reproduction prevails in a world of structured resources in short supply S Scheu and B Drossel PMCID: PMC2189572 Energy saving through trail following in a marine snail Mark S Davies and Janine Blackwell PMCID: PMC2189573 |
