This journal provides immediate access to some articles. Volume 274(1613); April 22, 2007 Research Articles Evolutionary response to size-selective mortality in an exploited fish population PMCID: PMC2124474 Experimental simulations about the effects of overexploitation and habitat fragmentation on populations facing environmental warming PMCID: PMC2124478 Observations of wild hunting behaviour and bioluminescence of a large deep-sea, eight-armed squid, Taningia danae PMCID: PMC2124471 Feedback control in active sensing: rat exploratory whisking is modulated by environmental contact PMCID: PMC2124479 Lizards speed up visual displays in noisy motion habitats PMCID: PMC2124473 Protein carbon content evolves in response to carbon availability and may influence the fate of duplicated genes PMCID: PMC2124476 Rapid courtship evolution in grouse (Tetraonidae): contrasting patterns of acceleration between the Eurasian and North American polygynous clades PMCID: PMC2124480 The threat of punishment enforces peaceful cooperation and stabilizes queues in a coral-reef fish PMCID: PMC2124475 The devil to pay: a cost of mutualism with Myrmelachista schumanni ants in ‘devil's gardens’ is increased herbivory on Duroia hirsuta trees PMCID: PMC2124481 | ||