Mark Bowler / Aerial view of Amazon River, with settlements and secondary rainforest, near Iquitos, Peru. July 2015.

Mark Moffett / Crown shyness among secondary growth trees, Selangor, Peninsular Malaysia

Merryn Thomas / Secondary rainforest in Sangay National Park, near Puyo, Ecuador. November 2013.

Mark Bowler / Rainforest aerial showing secondary forest, land cleared for small-scale agriculture in the traditional sustainable 'chacra' system (a type of slash and burn that returns to forest in rotation) Amazon...

Mark Bowler / Aerial view of secondary forest, and land cleared for small-scale agriculture in the traditional sustainable 'chacra' system (a type of slash and burn that returns to forest in rotation) Amazon Region...

Sebastian Kennerknecht / African Oil Palm (Elaeis guineensis) plantation with remaining secondary lowland rainforest in foreground, Kinabatangan River, Sabah, Borneo, Malaysia

Sebastian Kennerknecht / Borneo Pygmy Elephant (Elephas maximus borneensis) herd in secondary lowland rainforest, Kinabatangan River, Sabah, Borneo, Malaysia

Mark Moffett / Primary and secondary rainforest, Manaus, Brazil

Steve Nicholls / Logging of secondary forest, Florentine valley, Tasmania, Australia, February 2007

Steve Nicholls / Heavy truck carrying logs from logging of secondary forest, Florentine valley, Tasmania, Australia, February 2007

Steve Nicholls / Logging of secondary forest, Florentine valley, Tasmania, Australia, February 2007

Florian Möllers / Secondary rainforest growing over wrecks of old cars left behind after the Budongo Sawmill was deserted. Budongo Forest Reserve, Masindi, Uganda, Africa. December 2006