National Geographic ChannelNat Geo Wild
  • An extremely malnurished impala grazes on the winter's leftovers. This image is from Safari Live. [Photo of the day - May 2013]
    An extremely malnurished impala grazes on the winter's leftovers. This image is from Safari Live.
    Hendri Pelser
  • Churchill, Manitoba, Canada: Two male polar bears spar or play fight on fresh snow. This image is... [Photo of the day - May 2013]
    Churchill, Manitoba, Canada: Two male polar bears spar or play fight on fresh snow. This image is from Built for the Kill.
    iStockPhoto
  • A walrus. This image is from Ice Bear. [Photo of the day - May 2013]
    A walrus. This image is from Ice Bear.
    Arcadia Entertainment / PierreDunnigan
  • Mombo in the Okavango Delta in Botswana: Legadema a female cub resting in an acacia tree but cons... [Photo of the day - May 2013]
    Mombo in the Okavango Delta in Botswana: Legadema a female cub resting in an acacia tree but constantly alert. She is 14 months old here. This image is from Living with Big Cats.
    Wildlife films Botswana/ Beverly Joubert
  • A polar fox runs across the snow. This image is from Planet Carnivore. [Photo of the day - May 2013]
    A polar fox runs across the snow. This image is from Planet Carnivore.
    Jupiter Images
  • Denali National Park, Alaska, USA: A dall sheep grazes along a hillside near Polychrome Pass in D... [Photo of the day - May 2013]
    Denali National Park, Alaska, USA: A dall sheep grazes along a hillside near Polychrome Pass in Denali National Park. This image is from Bear Nomad.
    WNET and Nimmida Pontecorvo
  • Oklahoma, USA: Jesse, Marion Kincaid's dog. This image is from Mudcats. [Photo of the day - May 2013]
    Oklahoma, USA: Jesse, Marion Kincaid's dog. This image is from Mudcats.
    National Geographic Channels/Eric Gutierrez
  • A polar bear in a snowfield. This image is from Planet Carnivore. [Photo of the day - May 2013]
    A polar bear in a snowfield. This image is from Planet Carnivore.
    Jupiter Images
  • Oklahoma, USA. Ahorse on top of a hill.  This image is from Mudcats. [Photo of the day - May 2013]
    Oklahoma, USA. Ahorse on top of a hill. This image is from Mudcats.
    National Geographic Channels/Eric Gutierrez
  • Little auks by the seaside. This image is from Planet Carnivore. [Photo of the day - May 2013]
    Little auks by the seaside. This image is from Planet Carnivore.
    Jupiter Images
  • Brown bear. This image is from Hunter Hunted. [Photo of the day - May 2013]
    Brown bear. This image is from Hunter Hunted.
    Jupiter Images
  • Denali National Park, Alaska, USA: Chris Morgan camping in Denali National Park with the Northern... [Photo of the day - May 2013]
    Denali National Park, Alaska, USA: Chris Morgan camping in Denali National Park with the Northern Lights dancing overhead. This image is from Bear Nomad.
    WNET and Joseph Pontecorvo
  • Juvenile male lion eating carcass. This image is from In the Womb: Cats. [Photo of the day - May 2013]
    Juvenile male lion eating carcass. This image is from In the Womb: Cats.
    Pioneer Productions / Zoe Elliott
  • Polar bear close up. This image is from Born To Explore. [Photo of the day - May 2013]
    Polar bear close up. This image is from Born To Explore.
    Born to Explore, Explorer Films, LLC ©MMXII
  • Inuit child closeup. This image is from Born To Explore. [Photo of the day - May 2013]
    Inuit child closeup. This image is from Born To Explore.
    Born to Explore, Explorer Films, LLC ©MMXII
  • Brown bear with cubs  (Ursus arctos). This image is from Built For The Kill. [Photo of the day - May 2013]
    Brown bear with cubs (Ursus arctos). This image is from Built For The Kill.
    istockphoto
  • Penguins on Isla de Magdalena. This image is from Departures. [Photo of the day - May 2013]
    Penguins on Isla de Magdalena. This image is from Departures.
    Departures Entertainment 2 Inc
  • Oklahoma, USA: Teddy Good and Winston Walters holding a catfish. This image is from Mudcats. [Photo of the day - May 2013]
    Oklahoma, USA: Teddy Good and Winston Walters holding a catfish. This image is from Mudcats.
    National Geographic Channels/Eric Gutierrez
  • Serengeti/Massai Mara: Female cheetahs hunt gazelles most of the time. Only cheetah brothers who ... [Photo of the day - May 2013]
    Serengeti/Massai Mara: Female cheetahs hunt gazelles most of the time. Only cheetah brothers who hunt in a group choose bigger prey. This image is from Cheetah: Fatal Instinct.
    NDR Naturfilm
  • Grey wolf studies the beach of a very low tide on the Shelikof Strait. This image is from Planet ... [Photo of the day - May 2013]
    Grey wolf studies the beach of a very low tide on the Shelikof Strait. This image is from Planet Carnivore.
    Mark Emery / NGT
  • Giant river otters.  This image is from Secret Brazil. [Photo of the day - May 2013]
    Giant river otters. This image is from Secret Brazil.
    Bossa Nova Films/Cristian Dimitrius
  • A bengal cat. The cat family varies in size from a small house-cat to a lion, but they share many... [Photo of the day - May 2013]
    A bengal cat. The cat family varies in size from a small house-cat to a lion, but they share many of the same instincts and behaviour. This image is from In the Womb: Cats.
    Pioneer Productions / Zoe Elliott
  • Clewiston, FL  USA: American bison at Billie Swamp Safari. This image is from Swamp Men. [Photo of the day - May 2013]
    Clewiston, FL USA: American bison at Billie Swamp Safari. This image is from Swamp Men.
    Spectrum Field Productions, LLC
  • Denali National Park, Alaska, USA: An Artic ground squirrel fattens up for the winter in Denali N... [Photo of the day - May 2013]
    Denali National Park, Alaska, USA: An Artic ground squirrel fattens up for the winter in Denali National Park. This image is from Bear Nomad.
    WNET and Nimmida Pontecorvo
  • Alaskan Peninsula, USA: A bear walks down to graze after coming down from the bluff.  This image ... [Photo of the day - May 2013]
    Alaskan Peninsula, USA: A bear walks down to graze after coming down from the bluff. This image is from Bear Nomad.
    WNET and Chris Morgan