Mark Raycroft / Cocker Spaniel (Canis familiaris) puppy playing, North America

Konrad Wothe / Gyrfalcon (Falco rusticolus) flying, North America

Flip Nicklin / Oceanic White-tip Shark (Carcharhinus longimanus) underwater portrait, North America

Mark Raycroft / Golden Retriever (Canis familiaris) female puppy playing with stick, North America

Mark Raycroft / Beagle (Canis familiaris) puppy running, North America

Michael Durham / Coyote (Canis latrans) portrait of a nine week old pup, North America

Mark Raycroft / White-tailed Deer (Odocoileus virginianus) buck approaching doe in estrus in field

Winfried Wisniewski / Sandhill Crane (Grus canadensis) flying, North America

Tim Fitzharris / Timber Wolf (Canis lupus) leaping over fallen log, North America

Konrad Wothe / Mountain Lion (Puma concolor) wading across stream, North America

Sumio Harada / Mountain Goat (Oreamnos americanus) leaping across stream, Rocky Mountains, North America

Sumio Harada / Mountain Goat (Oreamnos americanus), Rocky Mountains, North America