Terry Whittaker / 2020VISION / Pine marten (Martes martes) 4-5 month kit in caledonian forest, The Black Isle, Highlands, Scotland, UK, July. Did you know? Despite their small size Pine martens defend territories up to 25 km2.

Mark Moffett / Leafcutter Ant (Atta cephalotes) worker carries leaf with its jaws full, workers carrying leaves must rely on a special cast of smaller ants riding on the leaves to defend against Phorid fly (Phoridae...

Norbert Wu / Brittle Star (Ophionotus victoriae) trying to defend itself against Antarctic Sun Starfish (Labidiaster annulatus), Palmer Station, Antarctic Peninsula, Antarctica

Christian Ziegler / Silverleaf Pumpwood (Cecropia peltata) use their energy to grow fast and spend little to defend leaves against herbivores, Barro Colorado Island, Panama

Alex Mustard / 2020VISION / Swimming / Harbour crab (Liocarcinus depurator) displaying claws to defend its patch of seabed in a sea loch, Loch Fyne, Argyll and Bute, Scotland, UK, July. Did you know? Of the ten limbs of the swim...

Chris Gomersall / 2020VISION / Worker Honey bees (Apis mellifera) defend honey comb from intruder Wasp (Vespula vulgaris) in beehive on heathland, Suffolk, UK, August. 2020VISION Exhibition. 2020VISION Book Plate.

David Woodfall / Fortifed church in Saxon village. Built in 12th Century to defend against Ottoman Empire. Romania, October 2010

Anup Shah / Egyptian geese (Alopochen aegyptiacus) male and female pair calling to defend teritory. Masai Mara National Reserve, Kenya, October 2009

Kristel Richard / Feral breeding stallion charging a bachelor stallion to defend his band in the Letea Forest, Danube Delta Biosphere Reserve, Romania, June 2009

Kristel Richard / A feral breeding stallion fights with an intruder to defend his band in the Letea Forest, Danube Delta Biosphere Reserve, Romania, June 2009

Kristel Richard / A feral breeding stallion fighting with an intruder to defend his band in the Letea Forest, Danube Delta Biosphere Reserve, Romania, June 2009

Roger Powell / Greenshank {Tringa nebularia} aggressively displaying in flight to defend chicks at nest, Glen Garry, West-Inverness, Scotland, UK

Michael Durham / Southern Three-banded Armadillo (Tolypeutes matacus) rolling into a ball to defend itself, Texas

Michael Quinton / Red-throated Loon (Gavia stellata) calling to defend territory, Alaska

Anup Shah / Thomson's gazelle {Gazella thomsoni} female charging at Jackal to defend her vulnerable fawn, Serengeti NP, Tanzania

Anup Shah / Thomson's gazelle {Gazella thomsonii} mother attempts to defend its fawn from a Golden jackal {Canis aureus} Ngorongoro conservation area, Tanzania

George McCarthy / Female Grizzly bear {Ursus arctos horribilis} with her cub prepares to defend a Bison carcass against Grey wolf {Canis lupus) Yellowstone NP, Montana, USA

Tony Heald / Spotted stone curlew / Cape dikkop / Spotted thick-knee {Burhinus capensis} displayin to defend nest, Kruger NP, South Africa.

Mark Moffett / Leafcutter Ant (Atta cephalotes) worker carries leaf with its jaws full, workers carrying leaves must rely on a special cast of smaller ants riding on the leaves to defend against Phorid fly attack, F...

Yva Momatiuk & John Eastcott / Atlantic Puffin (Fratercula arctica) gaping, a behavior used to defend their personal space, summer breeding season, Newfoundland, Canada

Norbert Wu / Garibaldi (Hypsypops rubicundus) pair in Kelp forest, males defend nests and farm rocks for algae, southern California

Norbert Wu / Garibaldi (Hypsypops rubicundus) in Kelp forest, males defend nests and farm rocks for algae, southern California

Norbert Wu / Brown-breasted Hedgehog (Erinaceus europaeus) occurs broadly in the Palaearctic region, will defend itself by rolling into a ball and exposing its spines

Norbert Wu / Brown-breasted Hedgehog (Erinaceus europaeus) occurs broadly in the Palaearctic region, will defend itself by rolling into a ball and exposing its spines

Norbert Wu / Garibaldi (Hypsypops rubicundus) males defend algal nest by removing grazing Purple Sea Urchin (Strongylocentrotus purpuratus), southern California

Norbert Wu / Garibaldi (Hypsypops rubicundus) males defend algal nests and remove algae grazers such as Purple Sea Urchins, California

Jabruson / Juvenile African fish eagle {Haliaeetus vocifer} tries to defend Lesser flamingo prey {Phoeniconaias minor} from Marabou storks {Leptoptilos crumeniferos} Lake Nakuru NP, Kenya

Mark Moffett / Ant (Myrmicaria sp) group defend a young bamboo plant in exchange for nectar found between the plant's segments, Malaysia

Erwan Quéméré / Fort Cigogne, Glenan Archipelago, France. ^^^It was built to defend the nearby harbour of Concarneau and fishing boats from British pirates.