Cyril Ruoso / Sumatran orangutan (Pongo abelii) female holding hands with baby whilst hanging from liana. Gunung Leuser National Park, Sumatra, Indonesia.

Anup Shah / Sumatran orangutan (Pongo abelii) female 'Juni' aged 12 years swinging from a liana. Gunung Leuser National Park, Sumatra, Indonesia. Rehabilitated and released (or descended from those which were rel...

Luiz Claudio Marigo / Lianas / vines of the flooded rainforest, Varzea, Mamiraua Ecol Stn, Amazonas, Brazil

Michael & Patricia Fogden / Lianas in interior of lowland rainforest, La Selva Biological Research Station, Costa Rica

Mark Moffett / Lianas climbing tree, Costa Rica

Doug Wechsler / Rainforest understorey, lianas. Iwokrama, Guyana, S. America

Doug Wechsler / Lianas in tropical rainforest, Borneo, Indonesia.

Staffan Widstrand / Tropical rainforest lianas (climbing vines) Trinidad, Caribbean.

Tim Laman / Small liana / vine in Sumatran rainforest, Batang Toru Forest, Sumatran Orangutan Conservation Project, North Sumatran Province, Indonesia.

Heather Angel / Shrubs, trees and lianas in tropical rainforest. Xishuangbanna,Yunnan Province, China.

Staffan Widstrand / Wild Wonders of China / Tangle of roots and lianas, Tangjiahe National Nature Reserve, Qingchuan County, Sichuan province, China

Staffan Widstrand / Wild Wonders of China / Lianas sp. growing around a tree , Tangjiahe National Nature Reserve,Qingchuan County, Sichuan province, China