Wild Wonders of Europe / Widstrand / Woman preparing soup in kitchen of Linden Tree Retreat & Ranch, Mejida, Velika Plana, Velebit Mountains Nature Park, Croatia, April 2014.

Wild Wonders of Europe / Widstrand / Soup served at Linden Tree Retreat & Ranch, Velika Plana, Velebit Mountains Nature Park, Croatia, April 2014.

Philippe Clement / Shark's fin, ingredient for shark fin soup, on dinner plate with Chinese chopsticks

David Tipling / Edible-nest Swiftlet (Aerodramus fuciphagus) nests on sale in medicine shop for making birds nest soup, Singapore.

David Tipling / Edible Nest Swiflet (Aerodramus fuciphagus) nests on sale in medicine shop in Singapore for making birds nest soup, Singapore, August 2011

David Tipling / Edible Nest Swiflet (Aerodramus fuciphagus) nests on sale in medicine shop in Singapore for making birds nest soup, Singapore, August 2011

Juergen Freund / Bird hotel for Edible nest swiftlets (Aerodramus fuciphagus) to harvest birds nests for bird nest soup. Kumai port, Central Kalimantan, Indonesian Borneo

Juergen Freund / Bird hotel for Edible nest swiftlets (Aerodramus fuciphagus) to harvest birds nests for bird nest soup. Kumai port, Central Kalimantan, Indonesian Borneo

Wild Wonders of Europe / Widstrand / Fish soup serving at Mama Sika's guesthouse, Sfintu Gheorghe, Danube delta rewilding area, Romania

Wild Wonders of Europe / Widstrand / Fish soup serving at Mama Sika's guesthouse, Sfintu Gheorghe, Danube delta rewilding area, Romania, June 2012

Enrique Lopez-Tapia / A porter with a hot soup in Samdo lodge (3.690m). Manaslu Conservation Area, Himalayas, Nepal, October 2009.

Alex Mustard / 2020VISION / Basking shark (Cetorhinus maximus) feeding at the surface in a thick soup of copepod zooplankton (Calanus finmarchicus), Cairns of Coll, Inner Hebrides, Scotland, UK, June

Nick Garbutt / Buildings constructed as 'artificial caves' to encourage Edible-nest swiflets (Aerodramus collocalia fuciphagus) to take up residence and nest. Nests are then collected seasonally and fetch extremely...

Tim Laman / A dead shark lies on a beach in the Raja Ampat Islands. Fisherman have stripped the fins for the shark fin soup trade. West Papua, Indonesia, April 2007

Chadden Hunter / Ted Giffords (cameraman) filming bats and local Malaysian bird-nest collectors who risk their lives to collect swallows nests for birds nest soup, Gomantong Caves, Borneo, Malaysia, April 2004, filmin...

Fred Bavendam / Grey Reef Shark (Carcharhinus amblyrhynchos) dead after its fins were cut off for shark fin soup, Thailand

Jeff Rotman / Drying Shark fins to trade with Hong Kong for Shark fin soup and medicine. Natal Sharks Board, Umhlanga, South Africa

Jeff Rotman / Drying Shark fins to trade with Hong Kong for Shark fin soup and medicine. Natal Sharks Board, Umhlanga, South Africa Model released.

Pete Oxford / Restaurant sign for Shark fin soup, Penang, Malaysia.

Nick Garbutt / Wood stacks anchoring rope ladders used to climb and collect swift nests for soup, Gomantong Caves, Sabah, Borneo.

Doug Perrine / Shark fin soup

Norbert Wu / Shark fins drying in the sun, used in shark fin soup, sharks are threatened by over fishing to supply high demand for fins and flesh, Baja California, Mexico

Jim Brandenburg / Red Deer (Cervus elaphus) antler prepared for processing, antlers are used in medicinal soup that promotes long life, Hong Kong, China

Jim Brandenburg / Red Deer (Cervus elaphus) antler velvet burnt of by man before it is used in medicinal soup that promotes long life, Hong Kong, China

Jim Brandenburg / Red Deer (Cervus elaphus) antler mixture prepared by man for medicinal soup that promotes long life, Hong Kong, China

Jim Brandenburg / Red Deer (Cervus elaphus) antler medicinal soup consumed by man, which is believed to promote long life, Hong Kong, China

Juergen Freund / Shark fins for sale in market. Hong Kong, China

Juergen Freund / Gomantong caves - collecting site for Cave swiftlet nests, Sabah, Borneo, Malaysia.

Jeff Rotman / Shark fins drying before shipment from South Africa to Hong Kong for use in soup and for medicine

Jeff Rotman / People holding dried shark fins used in shark soup and other products, caught on longline hook, Punta Arenas, Costa Rica, Pacific Ocean,

Juergen Freund / Shark fins drying. Philippines.

Jeff Rotman / Shark fin fibre, final product for shark fin soup and other products, sharks caught on longline hook, Punta Arenas, Costa Rica, Pacific Ocean Model released.

Pete Oxford / Hot soup seller Jainshui city, Yunnan, China

Magnus Lundgren / Jellynose fish (Ateleopus sp) juvenile, in a soup of plankton, off Anilao, Balayan Bay, Batangas, Philippines, Pacific Ocean.

Sirachai Arunrugstichai / Kitchen staff prepare shark fin soup at a Chinese restaurant in the Chinatown of Bangkok, Thailand, February 2015.