Nature Production / Bombardier Beetle (Pheropsophus jessoensis) protecting itself by ejecting a boiling, noxious chemical spray, Nagasaki, Japan.
Ole Jorgen Liodden / Arctic tern (Sterna paradisaea) attacking an Arctic Fox (Vulpes / Alopex lagopus) protecting its nest site, Spitsbergen, Svalbard, Norway. Highly commended, MAMMALS, GDT 2011 competition
Doug Gimesy / Koala (Phascolarctos cinereus) mother and joey are released by Emily Cordy (left/green clothes) - a Forest and Wildlife officer (and assisted by members from the Australian Defence Force) at Log Cros...
Matthew Maran / Red fox (Vulpes vulpes) cub defending its kill (a large dead Brown rat (Rattus norvegicus)) from another cub, North London, UK. August.
Morley Read / Slow motion clip of a Linnaeus' sipo snake (Chironius exoletus) with open mouth, part of threat display, Amazon rainforest, Orellana Province, Ecuador.
John Shaw / Common eider duck (Somateria mollissima) female defending her nest from arctic fox (Vulpes lagopus). Longyearbyen, Spitsbergen. June.
Espen Bergersen / Aerial shot of a female Humpback whale (Megaptera novaeangliae) and calf surrounded by Killer whales (Orcinus orca), mother hits sideways with her tail fluke to drive Killer whales away, Skjervoy, Tro...
Konrad Wothe / Larvae of Birch sawfly (Craesus septentrionalis) in alarm position, Upper Bavaria, Germany. October.
John Chan / Western gulls (Larus occidentalis) attacking an Elegant tern (Thalasseus elegans) with a broken wing, Southern California, USA, April.
Tony Wu / Sardines (Clupeidae) fleeing from predators in the early morning. They were being herded and chased by Trevallies and Blacktip reef sharks in the water, and picked off by brown boobies and terns from...
Georgette Douwma / Boxer Crab (Lybia tessellata) with sea anemones in its claws for defense. Lembeh Strait, North Sulawesi, Indonesia.
Guy Edwardes / Mozambique spitting cobra (Naja mossambica) spitting venom. Kruger, South Africa. Controlled conditions.
Robert Valentic / Eastern tiger snake (Notechis scutatus) female, Yarra River corridor in suburban Melbourne, Victoria, Australia, in mid-summer. She is in a defensive pre-strike position with hood expanded, accompanie...
Konrad Wothe / Slow motion clip of Wood ants (Formica rufa) on anthill, squirting formic acid to repel threat, Bavaria, Germany, April.
Solvin Zankl / Bioluminescent Sea-fireflies (Vargula hilgendorfii) producing a bright blue light. The light is produced by mixing two chemicals together in the presence of oxygen and is for mating displays or defenc...
Five Films / Female Grey seal (Halichoerus grypus) defending pup on beach, chasing male away, Horsey, Norfolk, November.
Lucas Bustamante / Tropical shield mantis (Choeradodis rhombicollis) in defensive position, on flower, Chinambi, Carchi, Ecuador.
Remi Masson / Group of Black bullhead (Ameiurus melas) shoaling to protect themselves against predators, River Rhone, Rhone-Alpes, France, July.
Robert Thompson / Sawfly larvae (Nematus pavidus) defensive posture, Peatlands Park, County Armagh, Northern Ireland. September.
Jordi Chias / European barracuda (Sphyraena sphyraena) and Bluefish (Pomatomus saltatrix) circling baitball of Atlantic horse mackerel (Trachurus trachurus) Formigas Islets, Azores. Finalist in the Underwater Categ...
Alex Mustard / Brandt's cormorant (Phalacrocorax penicillatus) hunts for a meal in a school of Pacific chub mackerel (Scomber japonicus), beneath an oil rig. Eureka Rig, Los Angeles, California, United States of Ame...
Alex Hyde / Silk moth (Automeris zugana) sequence 2 of 2, with wings open to reveal eyespots, a means of deterring predators, photographed on a white background in mobile field studio, Cordillera de Talamanca mou...
Ingo Arndt / Prairie rattlesnake (Crotalus viridis viridis), threat display, South Dakota, USA September. Sequence 1 of 3
Mark Taylor / Black-and-white kitten, Loona, age 11 weeks, arching back.
Bence Mate / Herring gull (Larus argentatus) mobbing White tailed sea eagle (Haliaeetus albicilla) with fish prey, Lake Csaj, Kiskunsagi National Park, Hungary. March.
Bence Mate / Gull mobbing White tailed sea eagle (Haliaeetus albicilla) with fish prey, Lake Csaj, Kiskunsagi National Park, Hungary. March.
Bence Mate / Juvenile White tailed eagle (Haliaeetus albicilla)in flight, with Hooded crow (Corvus cornix) mobbing it, Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. January.
Bence Mate / Hooded crow (Corvus cornix) mobbing Buzzard (Buteo buteo) Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary. January.
Luis Quinta / Grass snake (Natrix natrix) juvenile playing dead, Alvao, Portugal, April.
Edwin Giesbers / Barbary macaque (Macaca sylvanus) baring teeth as a sign of submission, Gibraltar Nature Reserve, Gibraltar,
Alex Mustard / Backlit detail of branching fire coral (Millepora alcicornis) showing the hair like polyps, filled with stinging nematocysts. East End, Grand Cayman, Cayman Islands. Caribbean Sea.
Mike Wilkes / Carrion crows (Corvus corone) harassing Buzzard (Buteo buteo) trying to steal its prey, Warwickshire, England, UK, March
Jabruson / Long-tailed Pangolin (Uromanis tetradactyla) unfurling itself from protective posture, close up of scales, Lokoue Bai. Odzala-Kokoua National Park, Republic of Congo
Jabruson / Long-tailed Pangolin (Uromanis tetradactyla) unfurling itself from protective posture, Lokoue Bai. Odzala-Kokoua National Park, Republic of Congo
Michael Pitts / Gentoo penguins (Pygoscelis papua) calling and defending their eggs from Southern Skua (Stercorarius antarcticus) hunting for unattended eggs or chicks, Sea Lion island, The Falklands, South Atlantic.
Andy Trowbridge / Female goshawk (Accipiter gentilis) hiding Wood pigeon (Columba palumbus) prey from passing crows. Southern Norway, February.
Roland Seitre / Kagu (Rhynochetos jubatus) with wings spread in defensive display to protect nest, captive, Parc zoologique et forestier / Zoological and Forest Park, Noumea, South Province, New Caledonia. Endangered...
Denis-Huot,Denis-Huot / White-backed Vulture (Gyps Africanus) feeding, Masai-Mara Game Reserve, Kenya
Andy Rouse / African Lioness (Panthera leo) portrait, with aggressive expression because of cubs nearby Maasai Mara, Kenya, Africa