Cheryl-Samantha Owen / Aaron Price riding his horse 'Beau' over his Ranch, Gracie Creek, Sandhills, Nebraska. Garfield County, Nebraska, USA. October 2014.

Cheryl-Samantha Owen / Lynn Ballagh closing gate on his cattle ranch, Sandhills of Nebraska, Garfield County, Nebraska, USA.

Staffan Widstrand / Bonelli's eagle or Eurasian hawk-eagle, Hieraetus fasciatus or Aquila fasciata, picture taken from hide, at a feeding station for conservation purposes, utillizing live domestic pigeons caught as pest...

Doug Perrine / Giant squirrelfish (Sargocentron spiniferum) at cleaning station in the cockpit of wreck of Panorama Air Tour Beech H18S that crashed in 1983 after take-off from Keahole airport, Kona, Hawaii.

Konrad Wothe / Starry night sky over the scientific research station in Panguana Reserve, Huanuca province, Amazon basin, Peru.

Chien Lee / Oriental Whip Snake (Ahaetulla prasina) juvenile, Danum Valley Field Center, Sabah, Borneo, Malaysia

Chien Lee / Asian Horned Frog (Megophrys nasuta) camouflaged in leaf litter, Danum Valley Field Center, Sabah, Borneo, Malaysia

Chien Lee / Mushroom (Filoboletus manipularis) group glowing at night, Danum Valley Field Center, Sabah, Borneo, Malaysia

Chien Lee / White Lauan (Parashorea malaanonan) buttress roots, Danum Valley Field Center, Sabah, Borneo, Malaysia

Chien Lee / Bornean Bristlehead (Pityriasis gymnocephala), Danum Valley Field Center, Sabah, Borneo, Malaysia

Chien Lee / Wallace's Flying Frog (Rhacophorus nigropalmatus) gliding, Danum Valley Field Center, Sabah, Borneo, Malaysia

Pal Hermansen / Dead, polluted Larch (Larix) forest, with power station behind, Norilsk, Russia.