David Tipling / Coypu (Myocastor coypus) Hula, Northern Israel, January. Introduced species.

Loic Poidevin / Coypu (Myocastor coypus) with Greylag goose (Anser anser) and duck in background. Le Teich, Gironde, Nouvelle-Aquitaine, France. April.

Loic Poidevin / Coypu (Myocastor coypus) juveniles in water. Le Teich, Gironde, Nouvelle-Aquitaine, France. April.

Loic Poidevin / Coypu (Myocastor coypus) female and young feeding on grass. Le Teich, Gironde, Nouvelle-Aquitaine, France. April.

Loic Poidevin / Coypu (Myocastor coypus) juvenile feeding on Bramble (Rubus fruticosus agg.). Le Teich, Gironde, Nouvelle-Aquitaine, France. April.

Laurent Geslin / Coypu (Myocastor coypus) in river, Strasbourg, France. June. Introduced species.

Chien Lee / Rajah Spiny Rat (Maxomys rajah) albino individual, Bintulu, Sarawak, Malaysia

Mark Bowler / Yellow-crowned brush-tailed rat / Cono-cono {Isothrix bistriata} in tree hollow, Yavari River, Peruvian Amazon

Nick Gordon / Spiny rat (Proechimys steerei) in hollow log den where it returns to eat gathered food in safety, Amazonia, Brazil

Rod Williams / Egyptian spiny mouse {Acomys cahirinus} captive, from North Africa and SW Asia

Rod Williams / Casiragua (Spiny rat) {Proechimys guairae} captive, from Northern South America

Hanne & Jens Eriksen / Egyptian spiny mice {Acomys cahirinus} Wadi Darbat, Oman