Denis-Huot / Glassfrog (Centrolenidae sp) Manuel Antonio National Park, Costa Rica

Brent Stephenson / Male Brown-throated Three-toed Sloth (Bradypus variegatus) climbing up a branch within forest. Manuel Antonio National Park, Puerto Quepos, Costa Rica, September.

Kevin Schafer / Central America Red Backed Squirrel Monkey (Saimiri oerstedii) resting on a frond. Endangered species. Manuel Antonio National Park, Costa Rica.

Kevin Schafer / Central America Red Backed Squirrel Monkey (Saimiri oerstedii) calling from a branch. Endangered species. Manuel Antonio National Park, Costa Rica.

Kevin Schafer / Three-toed / Brown throated sloth (Bradypus variegatus) depositing faeces on forest floor, Manuel Antonio National Park, Costa Rica

Kevin Schafer / Central American / Red-backed squirrel monkey (Saimiri oerstedii) mother with baby, Manuel Antonio NP, Costa Rica, vulnerable species

Martin van Lokven / Black Spiny-tailed Iguana (Ctenosaura similis), Manuel Antonio National Park, Costa Rica

Konrad Wothe / Halloween Crab (Gecarcinus quadratus) in defensive posture on beach, Manuel Antonio National Park, Costa Rica

Edwin Giesbers / Tourists on beach, Manuel Antonio National Park, pacific coast of Costa Rica

Edwin Giesbers / Pacific coast, Manuel Antonio National Park, Costa Rica

Edwin Giesbers / Tourists and trader on the beach, Manuel Antonio National Park, pacific coast of Costa Rica

Edwin Giesbers / Tourists and photographer on path through rainforest, Manuel Antonio National Park, Costa Rica