Why do songbirds sing intensively at dawn? Torben DabelsteenNicolas Mathevon Original Article Pages: 65 - 72
Analysis of conditional contingency using ACTUS2 with examples from studies of animal behavior G. Estabrook V. Almada J. Robalo Original Article Pages: 73 - 80
Some features of the behaviour of the marbled newt Triturus marmoratus (Latreille, 1800) in captivity J. Robalo V. Almada Original Article Pages: 81 - 84
Male mate choice in the gynogenetic–sexual complex of crucian carp, Carassius auratus Hiroshi HakoyamaKei'ichiroh Iguchi Original Article Pages: 85 - 90
Testosterone supplementation in juvenile Psammodromus algirus lizards: consequences for aggressiveness and body growth Emilio Civantos Original Article Pages: 91 - 95
Infanticide and effectiveness of pup protection in bank voles: does the mother recognise a killer? Hannu YlönenTaina J. Horne Original Article Pages: 97 - 101
Individual recruitment in honeybees, Apis mellifera L. Patricia FernándezWalter Farina Original Article Pages: 103 - 108
The courtship behaviour of the pipefish Nerophis lumbriciformis: reflections of an adaptation to intertidal life Nuno MonteiroMaria da Natividade VieiraVitor C. Almada Original Article Pages: 109 - 111
Why babies look like their daddies: paternity uncertainty and the evolution of self-deception in evaluating family resemblance Paola Bressan Original Article Pages: 113 - 118
Responses by a generalist predator, the Balearic lizard Podarcis lilfordi, to chemical cues from taxonomically diverse prey William E. CooperValentín Pérez-Mellado Original Article Pages: 119 - 124
Family break-up in farmed silver foxes (Vulpes vulpes) housed in enlarged cage systems as families Leena AholaJaakko Mononen Short Communication Pages: 125 - 127