Fabrice Cahez / Eurasian Sparrowhawk (Accipiter nisus) rear view perching on fence post with tail feathers spread. Vosges, France, January.

Juergen Freund / Olive python (Liasis olivaceus) perched on top of a termite mound. Many pythons shelter in hollow termite mounds when not hunting. Queensland, Australia, February

Tim Laman / Great Bowerbird (Chlamydera nuchalis) male in his bower. The center of the bower avenue is decorated with green fruits. Located on the campus of James Cook University, Townsville, Queensland, Australi...

Flip Nicklin / Bottlenose Dolphin (Tursiops truncatus) pod, Hawaii

Konrad Wothe / Bald Eagle (Haliaeetus leucocephalus) portrait, North America

TJ Rich / European river otter {Lutra lutra} standing on hind legs for better view of surrounding area, England, UK captive

Theo Allofs / Bengal Tiger (Panthera tigris tigris) walking in tall dry grass, dry season, April, Bandhavgarh National Park, India

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) fawn standing in summer stream

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) alert doe in autumn grasses, Adirondack Mountains, New York

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) big buck portrait North America

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) ten point buck in velvet

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) ten point buck in summer field

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) big eight point buck in velvet, backlit in meadow during late summer

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) two alert bucks at forest edge

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) big buck in dawn field backlit with other buck in background

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) alert buck close-up portrait North America

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) fawn in tall grass, autumn

Mark Raycroft / Elk (Cervus elaphus) large bull standing alert in meadow with mountains behind

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) young male portrait North America

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) two alert does, summer

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) two does and a fawn, backlit, standing alert in dewy morning meadow at forest's edge

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) spotted fawn bedded down in meadow

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) large buck bedded down in fall forest

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) large buck standing alert among ferns at forest's edge

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) alert buck with antlers in velvet at forest edge

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) alert fawn in summer field

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) alert fawn standing in tall, dry grass in late summer

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) buck standing alert among ferns at forest's edge

Mark Raycroft / Elk (Cervus elaphus) large bull looking over shoulder

Mark Raycroft / Coyote (Canis latrans) alert in field