Alex Mustard / A young female tiger shark (Galeocerdo cuvier) cruising in open water, Grand Bahama, Bahamas. Tropical West Atlantic Ocean.

Alex Mustard / A large female Tiger shark (Galeocerdo cuvier) in the shallows. Little Bahama Bank, Bahamas. Tropical West Atlantic Ocean.

Alex Mustard / Large female Tiger shark (Galeocerdo cuvier) patrols the shallows. Little Bahama Bank, Bahamas. Tropical West Atlantic Ocean.

Alex Mustard / Tiger shark (Galeocerdo cuvier) pushes against the camera's lens. Little Bahama Bank, Bahamas.

Alex Mustard / Tiger shark (Galeocerdo cuvier) accompanied by a group of Cobia (Rachycentron canadum). Cobia are large predatory fish, growing to 2m in length. Little Bahama Bank, Bahamas.

Alex Mustard / Tiger shark (Galeocerdo cuvier) swimming over coral reef. Grand Bahama Island, Bahamas. Tropical West Atlantic Ocean.

Alex Mustard / A long exposure of a Tiger Shark (Galeocerdo cuvier) portrait, at the surface at dusk. Little Bahama Bank, Bahamas. West Atlantic Ocean. March

Alex Mustard / A large female Tiger shark (Galeocerdo cuvier) portrait. Grand Bahama Island. Bahamas. Tropical West Atlantic Ocean.

Jeff Rotman / Scientsist revives Tiger shark (Galeocerdo cuvier), Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Scientist revives Tiger shark (Galeocerdo cuvier). Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Divers remove long-line fishing hook from Tiger shark (Galeocerdo cuvier) Bahamas, Caribbean Sea Model released.

Jeff Rotman / Scientsist revives and saves Tiger shark (Galeocerdo cuvier) from fishing related injury, by forcing water across its gills, Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Tiger Shark (Galeocerdo cuvier) demonstrating aggressive behavior, Great Barrier Reef, Australia, Coral Sea.

Jeff Rotman / Eye of Tiger shark (Galeocerdo cuvier), nictitating membrane closing to protect eye, Great Barrier Reef, Australia, Coral Sea.

Jeff Rotman / Tiger shark (Galeocerdo cuvier) Red Sea, Egypt

Jeff Rotman / Sequence 3/3 Three metre Tiger Shark (Galeocerdo cuvier) caught in anti-shark net, being hoisted into boat by three men, Durban Beach, South Africa.

Jeff Rotman / Tiger shark (Galeocerdo cuvier) Red Sea, Egypt

Hanne & Jens Eriksen / Common / Southern mountain viscacha {Lagidium viscacia} Lauca NP, Chile

Pete Oxford / Common / Southern mountain viscacha {Lagidium viscacia} on rocks at Machu Picchu, Peru

Pete Oxford / Common / Southern mountain viscacha {Lagidium viscacia} Lauca NP, Chile

Vincent Grafhorst / Cuvier's Madagascar Swift (Oplurus cuvieri) lizard on top of another, Antananarivo Crocodile Farm, Antananarivo, Madagascar

Jeff Rotman / Close-up of 3 meter Tiger Shark (Galeocerdo cuvier) caught in anti-shark net hanging before dissection. Natal Sharks Board, Umhlanga, South Africa Model released.

Jeff Rotman / Three meter Tiger Shark (Galeocerdo cuvier) caught in anti-shark net being prepared for dissection. Natal Sharks Board, Umhlanga, South Africa

Jeff Rotman / Three meter Tiger Shark (Galeocerdo cuvier) caught in anti-shark net awaits dissection and jaw extraction. Natal Sharks Board, Umhlanga, South Africa

Jeff Rotman / Three meter Tiger Shark (Galeocerdo cuvier) caught in anti-shark net awaits dissection and jaw extraction. Natal Sharks Board, Umhlanga, South Africa Model released.

Jeff Rotman / Close up of Trigger fish found in stomach of three meter Tiger Shark (Galeocerdo cuvier), Natal Sharks Board, Umhlanga, South Africa Model released.

Jeff Rotman / Close-up of 3-meter Tiger Shark (Galeocerdo cuvier) caught in anti-shark net off Durban Beach. Natal Sharks Board, Umhlanga, South Africa.

Jeff Rotman / Divers remove long-line fishing hook from Tiger Shark (Galeocerdo cuvier), Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Scientsist revives and saves Tiger Shark (Galeocerdo cuvier) by forcing water across its gills, Bahamas, Caribbean Sea. Model released.

Jeff Rotman / Close-up of dissection of 3-meter Tiger Shark (Galeocerdo cuvier) by two scientists. Natal Sharks Board, Umhlanga, South Africa

Jeff Rotman / Tiger Shark (Galeocerdo cuvier) demonstrating aggressive behavior, Red Sea.

Jeff Rotman / Diver examines 3-meter Tiger Shark (Galeocerdo cuvier) caught in anti-shark net off Durban Beach. Natal Sharks Board, Umhlamga, South Africa Model released.

Pete Oxford / Common mountain viscacha (Lagidum viscacia) on rocks, Inkawasi Island, Salar de Uyuni, Bolivia

Doug Perrine / Tiger shark (Galeocerdo cuvier) scavenging carcass of Green sea turtle (Chelonia mydas) killed by native Torres Strait hunters, Mabuiag Island, Torres Straits, Queensland, Australia, digitally enhance...

Doug Perrine / Tiger shark (Galeocerdo cuvier) scavenging carcass of Green sea turtle (Chelonia mydas) killed by native Torres Strait hunters, Mabuiag Island, Torres Straits, Queensland, Australia

Doug Perrine / Tiger shark (Galeocerdo cuvier) strikes a fledgling Black-footed albatross chick (Phoebastria nigripes) floating in the water after attempting its first flight, East Island, French Frigate Shoals, Pap...

Doug Perrine / Tiger shark (Galeocerdo cuvier) strikes unsuccessfully at a fledgling Laysan albatross chick (Phoebastria immutabilis) attempting its first flight, East Island, French Frigate Shoals, Papahanaumokuake...

Doug Perrine / Tiger shark (Galeocerdo cuvier) makes unsuccessful lunge at fledgling Black-footed albatross chick (Phoebastria nigripes) at beach where the chicks gather to prepare to take their first flight, East I...

Doug Perrine / Tiger shark (Galeocerdo cuvier) takes a fledgling Black-footed albatross chick (Phoebastria nigripes) floating in the water after attempting its first flight, East Island, French Frigate Shoals, Papah...

Doug Perrine / Stefanie Brendl films Tiger shark (Galeocerdo cuvier) underwater, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (MR 389)

Doug Perrine / Tiger shark (Galeocerdo cuvier) lunging for bait, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (digitally manipulated)

Doug Perrine / Photographer films Tiger shark (Galeocerdo cuvier) underwater, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (MR 390)

Doug Perrine / Stefanie Brendl films Tiger shark (Galeocerdo cuvier) underwater, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (MR 389)

Doug Perrine / Tiger shark (Galeocerdo cuvier) North Shore, Oahu, Hawaii, USA, Central Pacific Ocean

Doug Perrine / Tiger shark (Galeocerdo cuvier) lunging for bait, showing nictitating membrane covering eye to protect it, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean

Doug Perrine / Tiger shark (Galeocerdo cuvier) lunging for bait, showing nictitating membrane covering eye to protect it, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean

Doug Perrine / Diver swimming with Tiger shark (Galeocerdo cuvier) outside shark cage, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean (MR 389)

Doug Perrine / Tiger sharks (Galeocerdo cuvier) North Shore, Oahu, Hawaii, USA, Central Pacific Ocean

Doug Perrine / Tiger shark (Galeocerdo cuvier) lunging for bait, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean

Doug Perrine / Tiger sharks (Galeocerdo cuvier) North Shore, Oahu, Hawaii, USA, Central Pacific Ocean, note: shark at centre has parasitic leech on side of face

PREMAPHOTOS / Cuvier's / Madagascar spiny tailed lizard {Oplurus cuvieri} Madagascar

Nick Gordon / Cuvier's toucan (Ramphastos tucanus cuvieri) eating Clusia seeds, Amazonia, Brazil

PREMAPHOTOS / Cuvier's spiny-tailed lizard (Oplurus cuvieri) with a mass of red mites behind its head, in tropical dry forest, Madagascar

Juan Manuel Borrero / Cuvier's toucan (Ramphastos tucanus cuvieri) Peru

Tui De Roy / Cuvier's Beaked Whale (Ziphius cavirostris) adult underwater in deep inter-island waters near Baltra Island, Galapagos Islands, Ecuador

RHONDA KLEVANSKY / Common mountain viscacha {Lagidium viscacia} Inkawasi Is Salar de Uyuni, Bolivia

Pete Oxford / Common mountain viscacha {Lagidium viscacia} Inkawasi island, Salar de Uyuni, SW Bolivia

Hanne & Jens Eriksen / Common mountain viscacha {Lagidium viscacia} Lauca NP, Chile

Luiz Claudio Marigo / Common mountain viscacha {Lagidium viscacia} Lauca NP, Andes, N Chile

Todd Pusser / Cuviers beaked whale {Ziphius cavirostris} spy hopping, Ligurian Sea, Italy.

Todd Pusser / Male Cuviers beaked whale {Ziphius cavirostris} surfacing, Mediterranean Sea.

Todd Pusser / Cuviers beaked whale {Ziphius cavirostris} surfacing, Ligurian Sea, Italy.

Todd Pusser / Cuviers beaked whale {Ziphius cavirostris} surfacing, with scars on back, Ligurian Sea, Italy

Todd Pusser / Cuvier's beaked whale back profile {Ziphius cavirostris}, Cape Hatteras, North Carolina

Todd Pusser / Adult male Cuvier's beaked whale {Ziphius cavirostris}, Cape Hatteras, North Carolina

Todd Pusser / Cuvier's beaked whale surfacing {Ziphius cavirostris} North Carolina

Todd Pusser / Cuvier's beaked whale {Ziphius cavirostris} surfacing, atlantic coast, USA

Todd Pusser / Cuvier's beaked whale surfacing {Ziphius cavirostris} Mediterranean.

Todd Pusser / Cuvier's beaked whale male with exposed teeth on jaw {Ziphius cavirostris}

Todd Pusser / Cuvier's beaked whale breaching {Ziphius cavirostris} Mediterranean.

Jeff Rotman / Tiger shark {Galeocerdo cuvier} Red Sea

Jeff Rotman / Tiger shark {Galeocerdo cuvier} Red Sea

Jeff Rotman / Tiger shark {Galeocerdo cuvier} turns to display stripes, aggression, Red Sea.

Jeff Rotman / Tiger shark {Galeocerdo cuvier} mouth open in aggressive display, Red Sea.

Jeff Rotman / Tiger shark {Galeocerdo cuvier} mouth open in aggressive display, Red Sea.

Jeff Rotman / Scientist removes long line hook from Tiger shark {Galeocerdo cuvier} Bahamas, Model released.

Jeff Rotman / Tiger shark resting on seabed with seagrass {Galeocerdo cuvier} Bahamas, Caribbean Sea.

Jeff Rotman / Tiger shark {Galeocerdo cuvier} Red Sea

Jeff Rotman / Tiger shark {Galeocerdo cuvier} hooked on a long line, Bahamas, Caribbean Sea.

Jeff Rotman / Tiger shark {Galeocerdo cuvier} regurgitates contents of it's stomach, Red Sea Tiger

Jeff Rotman / Tiger shark {Galeocerdo cuvieri} Red Sea

Todd Pusser / Cuvier's beaked whale {Ziphius cavirostris}at surface, Atlantic, USA

Todd Pusser / Cuvier's beaked whale {Ziphius cavirostris} at surface, Atlantic, USA

Pete Oxford / Common mountain viscacha, Lauca National Park, Chile, South America.

Pete Oxford / Common mountain viscacha, Lauca NP, Chile, South America

David Fleetham / Tiger shark (Galeocerdo cuvier) and diver in a cavern in the waters of Hawaii. Model released.

Luciano Candisani / Cuvier's Dwarf Caiman (Paleosuchus palpebrosus) waiting for prey in undercut bank, Brazil

Paul D Stewart / Portrait of Richard Owen and Moa leg (20, July 1804 - 18 December 1892) photo-engraved by Walker and Boutall around 1894 from an 1846 Daguerrotype. Owen was a comparative anatomist and palaeontologist...

Paul D Stewart / Portrait of Richard Owen (20, July 1804 - 18 December 1892), 1894 engraving from an 1840s painting by Pickersgill, later hand colouring. Owen was a comparative anatomist and palaeontologist. He coined...

Paul D Stewart / Illustration 'Extinct Animals that once lived where Paris now is' an anonymous lithograph opposite page 21 from the American Children's book 'Wonders of the Earth Sea and Sky' 1837 written by Peter Pa...

Paul D Stewart / Illustration of Viscacha (Lagidium sp.). Plate 42 from Volume 1 Trans Zool Soc London, 1835, 'Additional remarks on the Genus Lagotis, with some account of a second species referrible to it' with cont...

Paul D Stewart / Illustration of Mammoth and Pteranodon 1820. An unrecorded, possibly unique print by 'E.S - F.G.S' (Fellow of Geological Society) in mezzotint style with contemporary hand colouring and ink inscriptio...

Paul D Stewart / Jean Baptiste Lamarck (1 August 1744 - 18 December 1829) portrait when old and blind. A later hand coloured frontis engraving by Lizars from his Cabinet Cyclopaedia series. Lamarck was a french pre-Da...

Paul D Stewart / Portrait of George Cuvier, naturalist, comparative anatomist and palaeontologist (23 August 1769 - 13 May 1832). Portrait engraving by James Thompson, issued by Mackenzie Glasgow around 1833 with late...

Paul D Stewart / Three toed sloth (Bradypus tridactylus). Skeleton of a three toed sloth, or 'Ai', copperplate engraving from Cuvier's 'Ossamens Fossiles' 1812. Cuvier saw that the key to understanding fossils was to...

Paul D Stewart / Mastodon teeth engraving in Cuvier's 'Ossamens Fossiles' (1812). Mammut americanum is a late pliocene/pleistocene relative of the elephants whose fossils are found only in North America. First discove...