Mark Raycroft / Elk (Cervus elaphus) bull crossing a river

Thomas Mangelsen / Sunset over Antler Creek, Yellowstone National Park, Wyoming

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) ten point buck crossing stream, fall

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) buck crossing stream

Michio Hoshino / Alaska Moose (Alces alces gigas) two skulls with antlers locked together in stream bed, males probably became fatally entangled while fighting, Alaska