Hemmed in between the Pacific and Atlantic oceans near the narrowest point of the Central American isthmus, the tiny republic of Costa Rica is often pictured as an oasis of political stability in the midst of a turbulent region. This democratic and prosperous nation is also one of the most biodiverse areas on the planet, an ecological treasure-trove whose wide range of habitats – ranging from rainforests and beaches to volcanoes and mangrove swamps – support a fascinating variety of wildlife, much of it now protected by an enlightened national conservation system widely regarded as a model of its kind.