Orsolya Haarberg / Eurasian beaver (Castor fiber) demonstrating stick display, territorial behaviour, Telemark, Norway, June

Orsolya Haarberg / Eurasian beaver (Castor fiber) demonstrating stick display, territorial behaviour, Telemark, Norway, June

Orsolya Haarberg / Eurasian beaver (Castor fiber) demonstrating stick display, territorial behaviour, Telemark, Norway, June

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

Jeff Rotman / Diver holds 20 kilo Northern / American Lobster (Homarus americanus) with claws open, demonstrating aggressive behavior, New England, USA, North Atlantic Ocean. Model released Model released.

Kim Taylor / Ruby-topaz Hummingbird (Chrysolampis mosquitus) male flying demonstrating how brilliant colours only show when the bird is viewed from the front, Digital composite, Trinidad.

Ann & Steve Toon / Big Life ranger demonstrating poisoned arrow used in elephant poaching, Mbirikani group ranch, Chyulu Hills, Amboseli-Tsavo ecosystem, Kenya, October 2012

Peter Cairns / 2020VISION / Man demonstrating birdbox building to children as part of Flora of the Fells day. Helvellyn, Lake District National Park, Cumbria, September.

Peter Cairns / 2020VISION / Man demonstrating birdbox building as part of Flora of the Fells day. Helvellyn, Lake District National Park, Cumbria, September.

Carol Walker / Lusitano horse, stallion demonstrating dressage move outside the Royal Riding School, Lisbon, Portugal, model released

Carol Walker / Lusitano horse, stallion demonstrating dressage leap, Portugal, 2011, model released

Claudio Contreras / Clouded Anole Lizard (Anolis nebulosus) on leaf, demonstrating gecko-like climbing abilites. Maria Madre Island, Islas Marias Biosphere Reserve, Sea of Cortez (Gulf of California), Mexico, July.

Roland Seitre / European Chameleon (Chamaeleo chamaeleon) demonstrating independent eye movement. Captive, indigenous to southern Europe. Sequence 5 of 5.

Roland Seitre / European Chameleon (Chamaeleo chamaeleon) demonstrating independent eye movement. Captive, indigenous to southern Europe. Sequence 4 of 5.

Roland Seitre / European Chameleon (Chamaeleo chamaeleon) demonstrating independent eye movement. Captive, indigenous to southern Europe. Sequence 3 of 5.

Roland Seitre / European Chameleon (Chamaeleo chamaeleon) demonstrating independent eye movement. Captive, indigenous to southern Europe. Sequence 1 of 5.

Roland Seitre / Panther Chameleon (Furcifer pardalis) portrait, demonstrating independent eye movement. Captive, indigenous to Madagascar. Sequence 4

Roland Seitre / Panther Chameleon (Furcifer pardalis) portrait, demonstrating independent eye-movement. Captive, indigenous to Madagascar. Sequence 2

Roland Seitre / Brown-throated Three-toed Sloths (Bradypus variegatus) hanging from a tree trunk, demonstrating bark-mimicking colouration. Captive. Aviarios del Caribe Sloth Sanctuary, Costa Rica.

Benoit Stichelbaut / New passengers attend a survival suit demonstration on the quarter deck. BHO Beautemps-Beaupre, Iroise Sea, Briitany, France. August 2005.

Solvin Zankl / Common fruit fly (Drosophila melanogaster) laboratory culture of flies demonstrating various mutations at Vienna Drosophila RNAi Center, Institute for Molecular Pathology, Austria, September 2010

Bryan and Cherry Alexander / Little auks (Alle alle) in flight, demonstrating their characteristic tight formation. Spitsbergen, Svalbard, Norway, June.

Sue Daly / Angler Fish (Lophius piscatorius) demonstrating its camouflage, mimicking its sandy habitat. Channel Islands, UK, July.

Sue Daly / Blonde Ray (Raja brachyura) demonstrating camouflage against sandy habitat. Channel Islands, UK, August.

Sue Daly / Angler Fish (Lophius piscatorius) demonstrating its camouflage, mimicking its sandy habitat. Channel Islands, UK, July.

Bryan and Cherry Alexander / Man demonstrating the layers he wears to keep warm (underwear, mid layers, outer layer, jacket & mittens) Antarctica, January 2006. Digital composite.

Charlie Summers / Wandering Albatross (Diomedea exulans) in flight, demonstrating the widest wingspan of any living bird species. Prion Island, South Georgia, January.

Alex Mustard / 2020VISION / A Grey seal (Halichoerus grypus) seems content to have found a diver's fin to play with, Lundy Island, Bristol Channel, England, UK, May. Grey seals will seek out divers and clearly enjoy demonstrati...

Florian Möllers / Forester George Majumder demonstrating remainder of front leg of Wild boar (Sus scrofa) as prey item of White-tailed Sea eagle (Haliaeetus albicilla), Berlin, Germany, May 2008

Tim Laman / Waved albatross (Phoebastria irrorata) pair demonstrating mating behaviour, Espanola Island, Galapagos, Critically endangered

Tim Laman / Waved albatross (Phoebastria irrorata) pair demonstrating mating behaviour, Espanola Island, Galapagos, Critically endangered

Tim Laman / Waved albatross (Phoebastria irrorata) pair demonstrating mating behaviour, Espanola Island, Galapagos, Critically endangered

Tim Laman / Waved albatross (Phoebastria irrorata) pair demonstrating mating behaviour, Espanola Island, Galapagos, Critically endangered

Tim Laman / Waved albatross (Phoebastria irrorata) pair demonstrating mating behaviour, Espanola Island, Galapagos, Critically endangered

Tim Laman / Waved albatross (Phoebastria irrorata) pair demonstrating beak clapping behaviour, Espanola Island, Galapagos, Critically endangered

Tim Laman / Waved albatross (Phoebastria irrorata) pair demonstrating beak clapping behaviour, Espanola Island, Galapagos, Critically endangered

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

Jeff Rotman / Dolphin trainer hugging two Bottlenose Dolphins (Tursiops truncatus), demonstrating affection between trainer and dolphins, Dolphin Reef, Eilat, Israel, Red Sea. Model released Model released.

Stephen Dalton / Greater false vampire bat (Megaderma lyra) flying in complete darkness between wire strands, demonstrating echo location, Research at Frankfurt University, Germany, controlled conditions

Anup Shah / Common zebra (Equus quagga) male and female demonstrating 'Flehmen' courtship behaviour. Masai Mara National Reserve, Kenya. March

Anup Shah / Common zebra (Equus quagga) male and female demonstrating 'Flehmen' courtship behaviour. Masai Mara National Reserve, Kenya. March

Merryn Thomas / Animal Rights demonstration outside the Sheldonian Theatre, Broad Steet, Oxford. June 2009.

Tom Gilks / The Wave, climate change march ahead of the Copenhagen climate summit. People carrying large banner stating 'Climate Change - Act Now' London, UK, 5th December 2009

Michele Westmorland / Man demonstrating coconut meat harvesting for tourists, Rano Island, Vanuatu May 2008

Michele Westmorland / Young men in traditional dress demonstrating headdress for tourists, Rano Island, Vanuatu May 2008

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

Jane Burton / Demonstrating cardiac massage on elderly Lurcher

Jane Burton / Demonstrating cardiac massage on Sable Border Collie, Model released

ZSSD / Galapagos Giant Tortoise (Chelonoidis nigra) adult with hatchling demonstrating growth, native to Galapagos Islands, Ecuador

Norbert Wu / Simulated specimen collecting for the aquarium fish trade, demonstrating the use of cyanide to stun fish which kills coral reefs as a side effect, Philippines

Juergen Freund / Demonstration against forest clearance on Vancouver Island, British Columbia, Canada

Bryan and Cherry Alexander / Man demonstrating clothing layers (outer layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrating clothing layers (outer mid layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrating clothing layers (outer mid layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrating clothing layers (mid layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.

Bryan and Cherry Alexander / Man demonstrating clothing layers (mid layer) at Mount Vinson Base Camp. Vinson Massif, Antarctica, January 2006.