Most traded species

Kalimantan, Indonesia: A rescued orangutan peers out of a temporary holding cage. Wild populations of great apes continue to decline drastically due to poaching and habitat clearance. Photograph: Ed Wray/AP

Gullin, China: A caged tiger in a tiger farm. Poaching of wild tigers could increase if China lifts a domestic ban on the trade of tiger products Photograph: Jonathan Watts/Guardian

A sawfish. A large ray, related to sharks, which are traded live for exhibition in aquariums and killed for their meat, fins and distinctive saw-like snouts Photograph: Tom Brakefield/Corbis

There is a large demand for this migratory shark's meat and fins. It is also used for fertiliser and fished for sport in the UK. Populations in the north Atlantic have declined by up to 89% Photograph: PR

The ongoing poaching of elephants is stimulated by the continued sale of ivory in some countries, particularly in Africa and Asia. Photograph: WWF-Canon/Martin Harvey/PR

Red and pink coral is the most valuable of all precious corals. Bottom crawls and over-harvesting have resulted in a dramatic decline in populations Photograph: WWF-Canon/Frédéric Monnot/PR

Stocks of the European eel have declined over the past several decades due to overfishing and poaching. Juveniles are often shipped from Europe to Asia for rearing; meat from adult specimens is also highly valued. Photograph: WWF-Canon/PR

Only Peru still exports the bigleaf mahogany in industrial quantities: a valuable and increasingly rare, species of rainforest tree. Photograph: WWF-Canon / James FRANKHAM/PR

Historically Asian rhinos have been hunted for their horn, a prized ingredient in traditional medicines. Destruction of their lowland forest habitat and poaching have also contributed to a drastic dwindling of populations. Photograph: Charles Philip Cangialosi/Corbis

A spiny dogfish, also sold as rock salmon in fish and chip shops. The EU is the largest importer of the species; the population in the north Atlantic has declined by 95% in the last ten years Photograph: Lawson Wood/Corbis