Donald M. Jones / Black Bear (Ursus americanus) cub in tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub in tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus), Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) in tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub in pine tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub in tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub in tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cubs playing, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus), Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub in tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub in tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus), Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) in meadow, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus), Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) eating berries, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus), Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub in pine tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub in pine tree, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) cub, Jasper National Park, Alberta, Canada

Donald M. Jones / Black Bear (Ursus americanus) ripped pinebark to feed on rich cambium layer, Jasper National Park, Alberta, Canada

Tim Fitzharris / Miette Range and Talbot Lake, Jasper National Park, Canada

LYNN M. STONE / Sandhill Cranes (Grus canadensis) flying on migration in front of moon. Jasper and Pulaski Counties, Indiana, USA, December.

LYNN M. STONE / Sandhill Cranes (Grus canadensis) on migration flight by moon. Jasper and Pulaski Counties, Indiana, USA, December.

Erlend Haarberg / Bighorn sheep (Ovis canadensis) licking salt from underside of car, Jasper National Park, Canada, September

Donald M. Jones / Red Squirrel (Tamiasciurus hudsonicus) pinecone food cache, Jasper National Park, Alberta, Canada

Donald M. Jones / Elk (Cervus elaphus) antler scrape on Cottonwood (Populus sp) trunk, Jasper National Park, Alberta, Canada

Donald M. Jones / Elk (Cervus elaphus) antler scrape on Cottonwood (Populus sp) trunk, Jasper National Park, Alberta, Canada

Donald M. Jones / Elk (Cervus elaphus) bull bugling, Jasper National Park, Alberta, Canada

Donald M. Jones / Elk (Cervus elaphus) bull bugling, Jasper National Park, Alberta, Canada

Donald M. Jones / Elk (Cervus elaphus) bull bugling, Jasper National Park, Alberta, Canada

Donald M. Jones / Elk (Cervus elaphus) bull with females in forest, Jasper National Park, Alberta, Canada

Donald M. Jones / Elk (Cervus elaphus) bulls sparring, Jasper National Park, Alberta, Canada

Donald M. Jones / Bighorn Sheep (Ovis canadensis) rams, Jasper National Park, Alberta, Canada

Donald M. Jones / Bighorn Sheep (Ovis canadensis) ram, detail of ear and horn, Jasper National Park, Alberta, Canada

Donald M. Jones / Bighorn Sheep (Ovis canadensis) rams, Jasper National Park, Alberta, Canada

John Abbott / Ashy clubtail dragonfly (Gomphus lividus) pair mating, Angelina National Forest, Jasper, Texas, USA, March

John Abbott / Attenuated bluet damselfly, male (Enallagma daeckii) Beaver Ponds in Angelina National Forest, Jasper County, Texas, USA, April

John Abbott / Banner club tailed dragonfly (Gomphus apomyius) male resting, Indian Creek, Jasper County, Texas, USA, April

Matthias Breiter / Mountains above Coral Creek and Cline River, Jasper National Park, Alberta, Canada

Matthias Breiter / Cline River showing heavy siltation and braiding, Jasper National Park, Alberta, Canada

Jane Burton / Black-and-white Border Collie puppy Jasper, 18 weeks, lying with head up.

David Welling / Ornate Pennant Dragonfly (Celithemis ornata) female perching. Jasper County, Texas, USA.

David Welling / Stream Cruiser Dragonfly (Didymops transversa) perching. Bouton Lake, Jasper County, Texas, USA, April.

Chien Lee / Jasper Cat Snake (Boiga jaspidea) showing outline of recently-consumed a bird egg, Gunung Mulu National Park, Sarawak, Borneo, Malaysia

David Welling / Bachman's Sparrow (Aimophila aestivalis) male perched on woody stem, and calling, Angelina National Forest, Jasper County, Texas, USA, June

David Welling / Bachman's Sparrow (Aimophila aestivalis) male perched on woody stem, and calling, Angelina National Forest, Jasper County, Texas, USA, June

Jasper Doest / Arctic Fox (Alopex lagopus) kits suckling, Svalbard, Norway

Jasper Doest / Dog sledding through snow, Abisko, Sweden

Jasper Doest / Great Gray Owl (Strix nebulosa) in pine forest, England

Jasper Doest / Great Gray Owl (Strix nebulosa) in spruce forest, England

Jasper Doest / Great Gray Owl (Strix nebulosa) in pine forest, England

Jasper Doest / Great Gray Owl (Strix nebulosa) peeking around tree, England

Jasper Doest / Striped Crayfish (Orconectes limosus) pair in defensive posture, Donana National Park, Seville, Andalusia, Spain

Jasper Doest / Striped Crayfish (Orconectes limosus) in defensive posture, Donana National Park, Seville, Andalusia, Spain

Jasper Doest / Rock Dove (Columba livia) pair in wall opening, Alfaro, Spain

Jasper Doest / Herring Gull (Larus argentatus) juvenile, Netherlands

Jasper Doest / Northern Gannet (Morus bassanus) nesting colony, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) nesting colony, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) nesting colony, Saltee Islands, Republic of Ireland

Jasper Doest / Northern gannet (Morus bassanus) nesting colony, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) landing, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) nesting colony, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) flying with nest material, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus), Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus), Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus), Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) calling, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) landing, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) landing, Saltee Islands, Republic of Ireland

Jasper Doest / Northern Gannet (Morus bassanus) preening at nest, Saltee Islands, Republic of Ireland

Jasper Doest / Coot (Fulica atra) on nest, Vlaardingen, Zuid-Holland, Netherlands

Jasper Doest / Northern Shoveler (Anas clypeata) drake, Friesland, Netherlands

Jasper Doest / Greater Scaup (Aythya marila) pair, Friesland, Netherlands

Jasper Doest / Grey Seal (Halichoerus grypus) pup, Donna Nook, Lincolnshire, United Kingdom

Jasper Doest / Grey Seal (Halichoerus grypus) with pup on beach, Donna Nook, Lincolnshire, United Kingdom

Jasper Doest / Great Crested Grebe (Podiceps cristatus) on nest, Zuid-Holland, Netherlands

Michael D. Kern / Jasper cat snake (Boiga jaspidea) captive, from SE Asia

David Noton / Circular motion blur on the autumn colours, Jasper National Park, Alberta, Canada. September 2009

David Noton / An ethereal sky over Jasper National Park, Alberta, Canada. September 2009

David Noton / Pyramid Lake and Mountain at dawn, Jasper National Park, Alberta, Canada. September 2009

David Noton / Athabasca River with Dragon Peak and the Winston Churchill Range at dawn, Jasper National Park, Alberta, Canada. September 2009

David Noton / Athabasca River with Mt Fryatt and Brussels Peak at dawn, Jasper National Park, Alberta, Canada. September 2009

David Noton / Autumn colours near Patricia Lake, Jasper National Park, Alberta, Canada. September 2009

David Noton / Athabasca River with Dragon Peak and the Winston Churchill Range at dawn, Jasper National Park, Alberta, Canada. September 2009

David Noton / Athabasca River with Dragon Peak and the Winston Churchill Range at dawn, Jasper National Park, Alberta, Canada. September 2009

David Noton / The Athabasca River with Dragon Peak and the Winston Churchill Range at dawn, Jasper National Park, Alberta, Canada. September 2009

David Noton / The Athabasca River with Dragon Peak and the Winston Churchill Range at dawn, Jasper National Park, Alberta, Canada. September 2009

David Noton / The Athabasca River with Mt Fryatt, Jasper National Park, Alberta, Canada. September 2009

David Noton / Panoramic view of the Athabasca River with Mt Fryatt and Brussels Peak at dawn, Jasper National Park, Alberta, Canada. September 2009

David Noton / The Athabasca River at the Meeting of the Waters, with Mt Hardisty beyond, Jasper National Park, Alberta, Canada. September 2009

David Noton / The Athabasca River at Otto's Cache, Jasper National Park, Alberta, Canada. September 2009

David Noton / Horseshoe Lake, with reflections, from low angle. Jasper National Park, Alberta, Canada. September 2009