Martha Holmes / Burrowing owl (Athene cunicularia) living in a wrecked helicopter fuselage. Florida, USA. August 2008.

Martha Holmes / Edge of large piece of ice sheet drifting in sea. Antarctic Peninsula. February 2008.

Paul D Stewart / 'Martha' the last passenger pigeon, (Ectopistes migratorius), who died Cincinnati Zoo, September 1st, 1914. This portrait of her published in March 1915 as the Frontispiece to William Hornaday's 'The...

Pete Oxford / Female Jaguar (Panthera onca) under anesthetic, having teeth measured as part of the collection of biometric data and physiological samples for a relocation project, captive, Fundacion Santa Martha Ce...

Martha Holmes / Cameraman Doug Allan prepares to film swimming polar bear from boat. On location for BBC Polar Bear programme 1996

Martha Holmes / Iceberg prow, summer, Antarctica

Martha Holmes / Southern elephant seal {Mirounga leonina} close-up of hand-like flipper scratching, Falkland Islands.

Martha Holmes / Detail of Hippopotamus skin showing oily secretion {Hippopotamus amphibius}

Martha Holmes / Emperor penguins {Aptenodytes forsteri} jumping out of sea onto ice, Cape Washington, Antarctica

Georgette Douwma / "Seatrek" programme presenters Martha Holmes and Mike de Gruy feeding Butterflyfish off Hawaii, 1991 - BBC NHU television series

Georgette Douwma / Martha Holmes swims with Whale Shark off Hawaii, 1991 on location for BBC NHU television series "Seatrek", Model released

Martha Holmes / Young orphan chimpanzee (Pan troglodytes) captive, Zambia

Martha Holmes / Group of Hippopotamuses in river (Hippopotamus amphibius) Luangwa River, Zambia, Africa.

Martha Holmes / Pod of Killer whales {Orcinus orca} with snowy mountains behind, Tysfiord, Norway

Martha Holmes / Female polar bear with cub on ice floe (Ursus maritimus) North West Territories, Canada

Martha Holmes / Cape buffalo herd (Synceros caffer caffer) S. Luangwa National Park, Zambia

Martha Holmes / Hippopotamus yawning, mouth open (Hippopotamus amphibius) Luangwa River, Zambia

Martha Holmes / Emperor penguin flying out of water {Aptenodytes forsteri} Cape Washington, Antarctica

Martha Holmes / Cape buffalo {Syncerus caffer caffer} large herd drinking in Luangwa river, Zambia.

Martha Holmes / Killer whale pod, Tvsfiord, Norway, Europe.

Martha Holmes / Male Killer whale {Orcinus orca} at surface, Tysfjord mountains, sunset, Autumn, Norway

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) large chick on fast ice, midnight sun in austral spring, No-name Rookery, Princess Martha Coast, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) pair with chick, Atka Bay, Princess Martha Coast, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) group, near Ekstrom Ice Shelf, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) large rookery on sea ice, Atka Bay, Princess Martha Coast, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) group, near Ekstrom Ice Shelf, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) trio observing Russian icebreaker parked in fast ice, Princess Martha Coast, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) courting pair, Atka Bay, Princess Martha Bay, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) pair with chick, Atka Bay, Princess Martha Coast, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) parents greeting chick, Atka Bay, Princess Martha Coast, Weddell Sea, Antarctica

Tui De Roy / Emperor Penguin (Aptenodytes forsteri) pair with chick, near Ekstrom Ice Shelf, Princess Martha Coast, Weddell Sea, Antarctica

Tui De Roy / Fimbul Ice Shelf, Princess Martha Coast, East Antarctica

Martha Holmes / Polar bear swimming. Canada (Ursus maritimus) NW Territories

Martha Holmes / Emperor penguin flying out of water {Aptenodytes forsteri} Cape Washington, Antarctica. NOT AVAILABLE FOR NORTH AMERICAN GREETINGS CARDS UNTIL 11/01/18

Martha Holmes / Polar bear swimming. Canada (Ursus maritimus) NW Territories

Martha Holmes / BBC field camp at Cape Washington Antarctica (for filming Blue Planet)

Martha Holmes / Bluefin tuna {Thunnus thynnus} Kushimoto Tuna Farm Japan. Bluefin tuna can swim at speeds of 50mph - they would win a silver swimming medal in an animal olympics competition.

Martha Holmes / European river otter eats crab (Lutra lutra) Shetland Is, UK. Juvenile male.

Martha Holmes / Mountain and glacier with ice floes, Antarctic Peninsula summer, Antarctica

Martha Holmes / Juvenile European river otter (Lutra lutra) Shetland Isles. UK Summer on the coast.

Martha Holmes / Bowhead whale just under ice, Arctic

Martha Holmes / Chimpanzee {Pan troglodytes} hand on bar of cage.

Martha Holmes / Polar bear swimming near ice floe. Canada, North West Territories

Martha Holmes / Polar bear cub peering out from under mother on ice floe. Wager Bay, Canada Arctic, summer 1996.

Martha Holmes / Sunlit iceberg in field of icebergs with stormy sky, Antarctica

Georgette Douwma / Martha Holmes with Giant Clam during filming of BBC television series 'Seatrek' 1991

Martha Holmes / Bowhead whale releasing breathing out underwater {Balaena mysticetus} Arctic

Martha Holmes / Aerial cameraman David Baillie and producer Martha Holmes on flight deck of HMS Endurance, standing by helicopter mounted with Gyron (stabilised aerial camera). February 20008. Taken on location for B...

Martha Holmes / Red algae in ice on shore. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Aerial view of coast of Antarctic Peninsula. February 2008.

Martha Holmes / Aerial view of coast of Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Producer Martha Holmes in Royal Navy helicopter. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Interior of Royal Navy helicopter showing pilots. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Yogicam' (vehicle-mounted Cineflex camera) alongside herd of drinking elephants (Loxodontia africana) at edge of swamp. Amboseli, Kenya. December 2007 Taken on location for BBC tv series 'Life

Martha Holmes / Yogicam' (vehicle-mounted Cineflex camera) alongside herd of drinking elephants (Loxodontia africana) at edge of swamp. Amboseli, Kenya. December 2007 Taken on location for BBC tv series 'Life

Martha Holmes / Lone lime tree (Tilia europaea) covered in snow. Forest of Dean, UK. January.

Martha Holmes / Spotted hyena pack (Crocuta crocuta) eating African buffalo (Syncerus caffer) carcass. Amboseli, Kenya. December 2007. Taken on location for BBC tv series 'Life'

Martha Holmes / Elephant herd (Loxodonta africana) walking, Amboseli, Kenya. December 2007. Taken on location for BBC tv series 'Life'

Martha Holmes / Elephant herd (Loxodonta africana) walking, Amboseli, Kenya. December 2007. Taken on location for BBC tv series 'Life'

Martha Holmes / Simon Werry rigging Cineflex 'yogicam' in back of vehicle. Amboseli, Kenya. December 2007. Taken on location for BBC tv series 'Life'

Martha Holmes / Simon Werry (watched by cameramen Mike Cuthbert and Martyn Colbeck) rigging Cineflex yogicam in back of vehicle. Amboseli, Kenya. December 2007. Taken on location for BBC tv series 'Life'

Martha Holmes / Simon Werry and Mike Watson derigging Cineflex camera from helicopter watched by locals. Amboseli, Kenya. December 2007 Taken on location for BBC tv series 'Life'

Martha Holmes / Cameraman Martyn Colbeck with mounted Cineflex camera on helicopter. Amboseli, Kenya. December 2007. Taken on location for BBC tv series 'Life'

Martha Holmes / Pilot Mike Watson refuelling helicopter (mounted with Cineflex camera) from drum. Amboseli, Kenya. December 2007. Taken on location for BBC tv series 'Life'

Martha Holmes / Aerial view of spit on James Ross Island. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Stormy views of James Ross Island. Antarctic Peninsula. February 2008.

Martha Holmes / Burrowing owl (Athene cunicularia) living in a wrecked helicopter fuselage. Florida, USA. August 2008.

Martha Holmes / Sediment rising from the sea bed as a result of a bottlenose dolphin (Tursiops truncatus) beating its tail down to trap fish. Beahviour known as mud-ringing. Florida Bay, USA. August 2008. Taken on...

Martha Holmes / Iceberg with cracks in soft light. Antarctic Peninsula. February 2008.

Martha Holmes / Window in iceberg in soft light. Antarctic Peninsula. February 2008.

Martha Holmes / Sediment rising from the sea bed as a result of a bottlenose dolphin (Tursiops truncatus) beating its tail down to trap fish. Beahviour known as mud-ringing. Florida Bay, USA. August 2008. Taken on...

Martha Holmes / Rings and marks on the sea bed created by mud-ringing bottlenose dolphins (Tursiops truncatus) in Florida Bay, USA. August 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Rings and marks on the sea bed created by mud-ringing bottlenose dolphins (Tursiops truncatus) in Florida Bay, USA. August 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Royal Navy helicopter (mounted with Gyron) parked at Rothera, British Antarctic Survey base. Antarctic Peninsula. February 2008. Taken on location for BBC tv series 'Life'

Martha Holmes / Herd of white-lipped peccaries (Tayassu pecari) crossing the Alto Madre de Dios river, Amazon basin. Peru.

Martha Holmes / Queen of the Andes (Puya raimondii) forest. Peru. June 2012.

Martha Holmes / Queen of the Andes (Puya raimondii) forest, Peru. June 2012.

Martha Holmes / Club finger coral {Porites porites} with extended polyps, Jamaica, Caribbean

Martha Holmes / Staghorn coral {Acropora cervicornis} with open polyps feeding at night, Grenadines, Caribbean. White tips typical of healthy growing staghorn coral.

Martha Holmes / Snowy sheathbill {Chionis alba} chicks with adult on nest in background, Seal Island, Antarctica

Martha Holmes / Looking down on Emperor penguin rookery {Aptenodytes forsteri} Cape Washington, Antarctica

Pete Oxford / Jaguar (Panthera onca) close-up of fur showing pattern of a female under anesthetic having biometric data and physiological samples taken for a relocation project, captive, Fundacion Santa Martha Cent...

Pete Oxford / Female Jaguar (Panthera onca) under anesthetic having foot measured as part of the collection of biometric data and physiological samples for a relocation project, captive, Fundacion Santa Martha Cent...

Pete Oxford / Female Jaguar (Panthera onca) under anaesthetic having blood taken from jugular vein for biometric data and physiological samples for a relocation project, captive, Fundacion Santa Martha Centro de Re...

Pete Oxford / Veterinarian Alexandra Blanco with female Jaguar (Panthera onca) under anesthetic having biometric data and physiological samples taken for a relocation project, captive, Fundacion Santa Martha Centro...

Pete Oxford / Jaguar (Panthera onca) paw of a female under anesthetic for the collection of biometric data and physiological samples for a relocation project, captive, Fundacion Santa Martha Centro de Rescate, Ecua...

Kevin Schafer / Emperor Penguin (Aptenodytes forsteri) portrait, Atka Bay, Antarctica

Jerry Monkman / Osprey {Pandion haliaetus} female with chick at nest, Martha's Vineyard, Massachusetts, USA

Jerry Monkman / Sun rising over Lower Makonikey, Martha's Vineyard, Cape Cod, Massachusetts, USA

Thomas Marent / Nymphalid Butterfly (Lebadea martha), Kheaun Sri Nakarin National Park, Thailand

Jan Vermeer / Emperor Penguin (Aptenodytes forsteri) chick, Atka Bay, Antarctica

Jan Vermeer / Emperor Penguin (Aptenodytes forsteri) chick, Atka Bay, Antarctica

Jan Vermeer / Weddell Seal (Leptonychotes weddellii) portrait, Atka Bay, Antarctica

Jan Vermeer / Weddell Seal (Leptonychotes weddellii) scratching nose Atka Bay, Antarctica

Jan Vermeer / Weddell Seal (Leptonychotes weddellii) yawning, Atka Bay, Antarctica

Jan Vermeer / Weddell Seal (Leptonychotes weddellii) portrait, Atka Bay, Antarctica