Steven Kazlowski / North American porcupine (Erethizon dorsatum) pup feeds on Alaskan high brush cranberries in the foothills of the Takshanuk Mountains, South-East Alaska, USA

Philippe Clement / The chapel Sankt Johann at Val di Funes / Villnösstal, in the foothills of the Dolomites, Italy. July 2010.

Jack Dykinga / Saguaro cacti (Carnegiea gigantea) at sunset in the foothills of the Santa Catalina Mountains, near the Sutherland Wash, Catalina State Park, Arizona, USA

MYN / David Hunter / Foothill Penstemon (Penstemon heterophyllus) flowers, Sierra Nevada Mountains, California, USA, July. meetyourneighbours.net project

David Noton / Telegraph poles leading to a foothill village near the Piano Grande. A herd of cattle in walking across the snow in the distance. Monti Sibillini National Park, Umbria, Italy, February 2010.

Daniel Heuclin / Yellow Palo Verde / Foothill Palo Verde (Parkinsonia microphylla / Cercidium microphyllum) growing in habitat. Foothills of Santa Catalina mountains. Arizona, USA, September.

Philippe Clement / Foothill palo verde (Cercidium microphyllum) among rocks showing its smooth green bark, Saguaro NP, Arizona, USA 2007

Philippe Clement / Foothill palo verde (Cercidium microphyllum) showing its smooth green bark, Saguaro NP, Arizona, USA

Philippe Clement / Foothill palo verde (Cercidium microphyllum) among rocks showing its smooth green bark, Saguaro NP, Arizona, USA 2007

Philippe Clement / Saguaro cactus {Carnegiea gigantea} growing through branches of Foothill palo verde tree{Parkisonia / Cercidium microphyllum}, Sonoran desert, Arizona May 2007

Philippe Clement / Young Saguaro cactus {Carnegiea gigantea} growing through branches of Foothill palo verde tree {Cercidium / Parkinsonia microphyllum}, Sonoran desert, Arizona

Philippe Clement / Saguaro cactus {Carnegiea gigantea} growing through branches of Foothill palo verde tree {Cercidium / Parkinsonia microphyllum}, Sonoran desert, Arizona

Philippe Clement / Saguaro cactus {Carnegiea gigantea} growing through branches of Foothill palo verde tree {Cercidium / Parkinsonia microphyllum}, Sonoran desert, Arizona

Tim Fitzharris / View over foothills to the west from Kings Canyon National Park, California

Tim Fitzharris / New Melones Lake surrounded by foothill Oak woodlands, man-made reservoir managed by Central Valley Project, Calaveras County, California

Tim Fitzharris / New Melones Lake surrounded by foothill Oak woodlands, man-made reservoir managed by Central Valley Project, Calaveras County, California

DAVID TIPLING / Toursits watching birds through binoculars from canopy walkway, foothill rainforest, El Valle, Panama.

DAVID TIPLING / Toursits watching birds through binoculars from canopy walkway, foothill rainforest, El Valle, Panama.

DAVID TIPLING / Toursits watching birds through binoculars from canopy walkway, foothill rainforest, El Valle, Panama.

Tui De Roy / Spectacled Bear (Tremarctos ornatus) male resting in tree, rehabilitation center in Andean foothills, Cerro Chaparri, Peru

Tui De Roy / Spectacled Bear (Tremarctos ornatus) older male in dry forest natural habitat, rehabilitation center in Andean foothills, Cerro Chaparri, Peru

Jim Brandenburg / Foothills, King's Canyon National Park, California

Jim Brandenburg / View to the west across Sierra Nevada foothills from King's Canyon National Park, California

Jim Brandenburg / Ridge lines silhouetted in mist, Kings Canyon National Park, California

Patricio Robles Gil / Elk (Cervus elaphus) herd grazing in foothills of Sierra del Carmen, Mexico

Jim Brandenburg / Foothills, King's Canyon National Park, California

Jim Brandenburg / View to the west across Sierra Nevada foothills from King's Canyon National Park, California

Jim Brandenburg / Hazy view to the west across the Sierra Nevada foothills from Kings Canyon National Park, California