Tim Laman / Boy (five years) running along canopy walkway through temperate rainforest, Capilano Park, Vancouver, British Columbia, Canada, August 2005, Model released

Tim Laman / Young boy aged 7 (model released) exploring a canopy rope bridge walkway through the lowland dipterocarp rainforest in Borneo. Danum Valley Conservation Area, Sabah, Malaysia, July 2007

Bryan and Cherry Alexander / Norwegian group, 'Living the Dream' arrive at the Ceremonial Pole. South Pole, Antarctica, January 2006.

Bryan and Cherry Alexander / Polar bear (Ursus maritimus) picking her way across a lead on chunks of ice. Spitsbergen, Norway, 1993.

Bryan and Cherry Alexander / Man demonstrating clothing layers (outer layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrating clothing layers (outer mid layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrating clothing layers (outer mid layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrating clothing layers (mid layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrating clothing layers (mid layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrates clothing layers (underwear) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Chase Dekker / Car on road in driving through colorul autumn forest, Green Mountains, Vermont

Konrad Wothe / Trail through forest, Tofane Mountains, Dolomites, South Tyrol, Italy