Tim Fitzharris / Ruby Beach, Olympic National Park, Washington

Andy Rouse / 2020VISION / European river otter (Lutra lutra) swimming in lake with cub, Wales, UK, October. Photographer quote: "Rain, rain and more rain, a typical Welsh summers day,but even though I was soaked through I was...

Inaki Relanzon / Beech (Fagus sylvatica) leaves overhanging Bellos River in Aisclo Canyon, Ordesa National Park, Pyrenees, Aragon, Spain. October 2009

Wild Wonders of Europe / Relanzó / Wild coast on a windy day, Benijo, Anaga Peninsula, North East Tenerife, Canary Islands, Spain, December 2008

Wild Wonders of Europe / Relanzón / Coast on a stormy day, Benijo, Anaga Peninsula, North East Tenerife, Canary Islands, Spain, December 2008

Thomas Marent / Cascades of the Iguacu Falls, the world's largest waterfalls, Iguacu National Park, Argentina

Tim Fitzharris / Crashing surf on rocks at sunset, Point Piedras Blancas, California

Colin Monteath / Eleven-armed Sea Star (Coscinasterias calamaria) group on coastal rocks at low tide, Paparoa National Park, New Zealand

Tim Fitzharris / Tower Fall, Yellowstone National Park, Wyoming

Tim Fitzharris / Laurel Creek, Great Smoky Mountains National Park, Tennessee

Tim Fitzharris / Laurel Creek, Great Smoky Mountains National Park, Tennessee

Tim Fitzharris / Little River, Great Smoky Mountains National Park, Tennessee