Feature articles: (1) Crabbe, M. The sensory system in snakes. (2) López del Castillo, Carlos. Metabolic bone diseases: gout and articular pseudogout. (3) González García, David. Phelsuma madagascariensis: the emerald of Madagascar in the terrarium. (4) Barrio, César L. Triturus vitattus: the Banded Newt. (5)Pérez, César, Ana Maria Fidalgo, and Manuel Merchán. The Reproductive strategies of amphibians. (6) Mattison, Chris. Elaphe bairdi. (7)de la Ossa Velasquez, Jaime L. Phrynops dahli: a little known turtle endemic to the Caribbean coast of Colombia. (8) Martinez Silvestre, A. andJ. Soler Massana. Chamaeleo chamaeleon: interpretation of colours in the Common Chameleon.