Colin Monteath / Mt Cook, also called Aoraki, and Mt Tasman, aerial view at dawn of eastern faces from above Tasman Glacier, South Island, New Zealand

Florian Möllers / Chinese farmers 'separating the wheat from the chaff', here with yellow peas (Pisum sativum). Zhouzhi Nature Reserve, Shaanxi, China, October 2006.

Nigel Cattlin / Chinese edible frogs (Hoplobatrachus rugulosus) in net bag at market, alive. Bangkok, Thailand.

Heather Angel / Sacred lotus ( Nelumbo nucifera) seeds removed from the enlarged receptacle. Seeds are combined with rice to form a porridge. Puzhehei, Puzhehei National Wetland Park, Yunnan Province, China. 2009.

Heather Angel / Dragonfly (Odonata) nymphs, sold live as food. Puzehai Lake, Puzhehei National Wetland Park, Yunnan, China. 2009.

Heather Angel / Bird flower (Polygala arillata) for sale as food, Tengchong market, Yunnan Province, China.

Heather Angel / Breaking Sacred lotus (Nelumbo nucifer) fruit to release seeds embedded in pits. Seeds are used together with rice to form porridge. Puzhehei, Puzhehei National Wetland Park, Yunnan, China. July 2009.

Heather Angel / Chinese grass carp / White amur (Ctenopharyngodon idella), farmed for food in China. Captive specimen, China.

Staffan Widstrand / Wild Wonders of China / Chinese woman cooking, Xiang Bai Lisu village, Tongbiguan Nature Reserve, Dehong prefecture, Yunnan province, China. May

Staffan Widstrand / Wild Wonders of China / Chinese red birch tree (Betula albosinensis) close up of peeling bark, Tibetan Plateau, Qinghai, China

Staffan Widstrand / Wild Wonders of China / Chinese red birch tree (Betula albosinensis) close up of peeling bark, Tibetan Plateau, Qinghai, China

Staffan Widstrand / Wild Wonders of China / Chinese red birch (Betula albosinensis) bark peeling, Tibetan Plateau, Qinghai, China

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