This journal provides immediate access to some articles. Volume 272(1572); August 7, 2005 Review Research Articles Behaviour of leatherback sea turtles, Dermochelys coriacea, during the migratory cycle PMCID: PMC1559844 Synergistic effects of combining morphological and molecular data in resolving the phylogeny of butterflies and skippers PMCID: PMC1560179 Spider webs designed for rare but life-saving catches PMCID: PMC1559834 Relatedness and helping in fish: examining the theoretical predictions PMCID: PMC1559835 Stable isotopes, beaks and predators: a new tool to study the trophic ecology of cephalopods, including giant and colossal squids PMCID: PMC1559839 Pathogen adaptation under imperfect vaccination: implications for pertussis PMCID: PMC1559845 Crossing species' range borders: interspecies gene exchange mediated by hybridogenesis PMCID: PMC1559833 | ||