Paul D Stewart / Illustration of Samoan tooth billed pigeon (Didunculus strigirostris) antique folio lithograph Published 1844-49, for 'The Genera of Birds.' by George Edward Gray. Illustrated by David William Mitchel...

Paul D Stewart / Illustration of Greater crucifix beetle (Panagaeus cruxmajor) from Donovan's 'Natural History of British Insects', circa 1806.

Paul D Stewart / Darwin in the Woods - historical cartoon of Charles Darwin entitled 'Natural Selection' by Frederick Waddy from his 'Cartoon portraits and biographical sketches of men of the day' 1873.

Paul D Stewart / Historical illustration of extinct Puri tribe from North Coast of South America. Mother and child, and man in hammock, with poison dart frog held over fire to collect its toxin, used for poison darts...

Paul D Stewart / Historical illustration of local man hunting Barbary lion (Panthera leo leo) 1853 Engraving. Extinct in the wild, with possible zoo specimens claimed to be pure Barbary lion.

Paul D Stewart / Historical illustration of Privet hawkmoth (Sphinx ligustri), and Small tortoiseshell butterfly (Aglais urticae) showing 'aurelian' chrysalis. Plate II in the first edition of the Aurelian by Moses Ha...

Paul D Stewart / Historical illustration of Large elephant hawk moth (Deilephila elpenor) and Small elephant hawk moths (Deilephila porcellus) Plate VII in the first edition of the Aurelian by Moses Harris, 1766.

Paul D Stewart / Illustration of Eyed hawk moth (Sphinx occelata) and White ermine moth (Spilosoma lubricipeda) and food plant, from the Aurelian by Moses Harris, 1776.

Paul D Stewart / Illustration of Apollo butterflies (Parnassius apollo) and the False Apollo (Parnassius mnemosyne) as well as chrysalis and Sedum foodplant, By unknown European artist, 1875.

Paul D Stewart / Albin's Hampstead eye butterfly (Junonia villida) illustration from from 'A History of British Butterflies' by the Rev. Francis Orpen Morris, published in London 1853. Only one specimen was ever recor...

Paul D Stewart / Illustration of Achiote (Bixa orellana) is a small tree originating from the tropical Americas. From Friedrich Johann Justin Bertuch's 'Bilderbuch Fur Kinder' circa 1795.

Paul D Stewart / Illustration of Saffron crocus (Crocus sativus) and stigmas - or threads, used as seasoning and food colouring and worth more than its weight in gold. From Friedrich Johann Justin Bertuch's 'Bilderbuc...

Paul D Stewart / Paradise parrot (Psephotus pulcherrimus) illustration from W. T. Greene Parrots In Captivity, George Bell and Sons, 1884 - 1887. Wood engraving by Benjamin Fawcett after drawings by A.F. Lydon. Extinc...

Paul D Stewart / Illustration of Carolina parrot (Conuropsis carolinensis) from W. T. Greene Parrots In Captivity, George Bell and Sons, 1884 - 1887. Wood engraving by Benjamin Fawcett after drawings by A.F. Lydon. Th...

Paul D Stewart / Historical illustration of Reindeer, from woodcut from Icones Animalium by Gesner, 1560.

Paul D Stewart / Historical illustration of Reindeer, from 1875.

Paul D Stewart / Historical illustration of Reindeer by George Edwards from 1772.

Paul D Stewart / Historical illustration of Reindeer from the 1600s.

Martin Camm / Carwardine / Illustration of Killer Whale / Orca / Sea Wolf / Blackfish (Orcinus orca) male.

Rebecca Robinson / Illustration of the dive and breach sequence of an hourglass dolphin (Lagenorhynchus cruciger).

Rebecca Robinson / Illustration of the diving behaviour of Shepherds Beaked Whale (Tasmacetus shepherdi).

Rebecca Robinson / Illustration of the diving and breaching behaviour of Rissos Dolphin (Grampus griseus).

Rebecca Robinson / Illustration of the diving and surfacing behaviour of a Narwhal (Monodon monoceros).

Rebecca Robinson / Illustration of the diving behaviour of a Sowerby's Beaked Whale (Mesoplodon bidens).

Rebecca Robinson / Illustration of the diving and breaching behaviour of an Arnoux's beaked whale (Berardius arnuxii).

Rebecca Robinson / Illustration of the diving and breaching behaviour of a Pygmy Killer Whale (Feresa attenuata).

Rebecca Robinson / Illustration of the diving and breaching behaviour of a Pacific White-Sided Dolphin (Lagenorhynchus obliquidens).

Rebecca Robinson / Illustration of the diving and breaching behaviour of a Ganges River Dolphin (Platanista gangetica).

Rebecca Robinson / Illustration of the diving behaviour of a Strap-Toothed Whale (Mesoplodon layardii).

Rebecca Robinson / Illustration of the diving behaviour of Trues Beaked Whale (Mesoplodon mirus).

Rebecca Robinson / Illustration of a Finless Porpoise (Neophocaena asiaeorientalis).

Rebecca Robinson / Illustration of the diving and breaching behaviour of Dusky Dolphin (Lagenorhynchus obscurus).

Rebecca Robinson / Illustration of the blow and diving behaviour of Gervais Beaked Whale (Mesoplodon europaeus).

Rebecca Robinson / Illustration of the diving and breaching of Hectors Dolphin (Cephalorhynchus hectori). Editorial use only.

Rebecca Robinson / Illustration of the diving behaviour of a Heavisides Dolphin (Cephalorhynchus heavisidii).

Rebecca Robinson / Illustration of the diving behaviour and breaching of a Chilean Dolphin (Cephalorhynchus eutropia).

Rebecca Robinson / Illustration of Deraniyagalas beaked whale (Mesoplodon hotaula).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of North Atlantic Bottlenose Whale (Hyperoodon ampullatus).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of Cuviers Beaked Whale (Ziphius cavirostris).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of Bairds Beaked Whale (Berardius bairdii).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of the Indo-Pacific Beaked Whale (Indopacetus pacificus).

Rebecca Robinson / Illustration of the surface profile and diving behaviour of Narrow-ridged Finless Porpoise (Neophocaena asiaeorientalis).

Rebecca Robinson / Illustration of the surface profile with blow and diving/breach behaviour of Minke Whale (Balaenoptera acutorostra).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of Hubbs Beaked Whale (Mesoplodon carlhubbsi).

Rebecca Robinson / Illustration of the surface profile with blow and diving/breaching behaviour of Hectors Beaked Whale (Mesoplodon hectori) male.

Rebecca Robinson / Illustration of the surface profile and diving behaviour of Harbour Porpoise (Phocoena phocoena).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of Omura's Whale (Balaenoptera omurai).

Rebecca Robinson / Illustration of Omura's Whale (Balaenoptera omurai).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of a Short-Finned Pilot Whale (Globicephala macrorhynchus).

Rebecca Robinson / Illustration of the surface profile with blow and diving behaviour of a Pygmy Right Whale (Caperea marginatamale).

Rebecca Robinson / Illustration of the surface profile with blow and diving/breaching sequence of Southern Bottlenose Whale (Hyperoodon planifrons).

Rebecca Robinson / Illustration of the surface profile with blow and dive sequence of North Atlantic Right whale (Eubalaena glacialis), North Pacific Right Whale (Eubalaena japonica) and Southern Right Whale (Eubalaena...

Rebecca Robinson / Illustration of Blainvilles Beaked Whale / Atlantic Beaked Whale (Mesoplodon densirostris) surface profile with blow and dive sequence.

Rebecca Robinson / Illustration of Baiji / Yangtze River Dolphin (Lipotes vexillifer) surface profile and dive sequence.

Rebecca Robinson / Illustration of Indian Humpback Dolphin (Sousa plumbea).

Rebecca Robinson / Illustration of a Guiana dolphin (Sotalia guianensis).

Rebecca Robinson / Illustration of an Australian humpback dolphin (Sousa sahulensis).

Rebecca Robinson / Illustration of the dive sequence of long-finned pilot whale (Globicephala melas).

Rebecca Robinson / Illustration of the dive sequence of a finless porpoise (Neophocaena phocaenoides).

Rebecca Robinson / Illustration of the dive and breach sequence of Indo-Pacific bottlenose dolphin (Tursiops aduncus).

Rebecca Robinson / Illustration of the dive sequence of Andrew's beaked whale (Mesoplodon bowdoini).

Rebecca Robinson / Illustration of the dive and breach sequence of Amazon river dolphin (Inia geoffrensis).

Rebecca Robinson / Illustration of the dive and breach sequence of Peale's dolphin (Lagenorhynchus australis).

Rebecca Robinson / Illustration of an Araguaian river dolphin / Araguaian boto (Inia araguaiaensis).

Rebecca Robinson / Illustration of a Bolivian Bufeo (Inia geoffrensis boliviensis) in profile, endemic to Bolivia.

Rebecca Robinson / Illustration of the dive sequence of Ginkgo-Toothed Beaked Whale (Mesoplodon ginkgodens).

Rebecca Robinson / Illustration of the dive sequence of Stejnegers Beaked Whale (Mesoplodon stejnegeri).

Rebecca Robinson / Illustration of the dive sequence of Pygmy Beaked Whale (Mesoplodon peruvianus).

Rebecca Robinson / Illustration of the dive sequence of Perrins Beaked Whale (Mesoplodon perrini).

Rebecca Robinson / Illustration of the dive and breach sequence of Guiana Dolphin (Sotalia guianensis).

Rebecca Robinson / Illustration of the dive and breach sequence of Grays Beaked Whale (Mesoplodon grayi).

Rebecca Robinson / Illustration of the breaching sequence of Striped Dolphin (Stenella coeruleoalba).

Rebecca Robinson / Illustration of the diving and breaching sequence of Australian Humpback Dolphin (Sousa sahulensis).

Rebecca Robinson / Illustration of the dive sequence of a Franciscana / La Plata River Dolphin (Pontoporia blainvillei).

Rebecca Robinson / Illustration of the diving and breaching sequence of Tucuxi Dolphin (Sotalia fluviatilis).

Rebecca Robinson / Illustration of the diving and breaching sequence of an Indo-Pacific Humpback Dolphin (Sousa chinensis).

Rebecca Robinson / Illustration of the diving and breaching sequence of an Indian Humpback Dolphin (Sousa plumbea).

Rebecca Robinson / Illustration of the diving and breaching sequence of Heavisides Dolphin (Cephalorhynchus heavisidii).

Rebecca Robinson / Profile illustration of Australian Snubfin Dolphin (Orcaella heinsohni).

Rebecca Robinson / Illustration of a breaching and diving sequence of Australian Snubfin Dolphin (Orcaella heinsohni).

Chris Shields / Illustration of extinct Mega Penguin (Palaeeudyptes klekowskii) with human and Emperor penguin (Aptenodytes forsteri) for scale. Mega Penguins were the largest and heaviest penguins ever,with this spe...

Yumiko Wakisaka / Sei Whale (Balaenoptera borealis)

Yumiko Wakisaka / Rough-toothed Dolphin (Steno bredanensis)

Yumiko Wakisaka / Risso's Dolphin (Grampus griseus)

Yumiko Wakisaka / Pygmy Sperm Whale (Kogia breviceps)

Yumiko Wakisaka / Pygmy Right Whale (Caperea marginata)

Yumiko Wakisaka / Pygmy Killer Whale (Feresa attenuata)

Yumiko Wakisaka / Pygmy Beaked Whale (Mesoplodon peruvianus)

Yumiko Wakisaka / Perrin's Beaked Whale (Mesoplodon perrini)

Yumiko Wakisaka / Peale's Dolphin (Lagenorhynchus australis)

Yumiko Wakisaka / Pantropical Spotted Dolphin (Stenella attenuata)

Yumiko Wakisaka / White-beaked Dolphin (Lagenorhynchus albirostris)

Yumiko Wakisaka / Vaquita (Phocoena sinus)

Yumiko Wakisaka / Tucuxi River Dolphin (Sotalia fluviatilis)

Yumiko Wakisaka / True's Beaked Whale (Mesoplodon mirus)

Yumiko Wakisaka / Striped Dolphin (Stenella coeruleoalba)