Jack Dykinga / Yellow-headed blackbird (Xanthocephalus xanthocephalus) murmurations as flock returns to roost at sunset, Whitewater Draw Preserve, Arizona, USA.

Eric Baccega / Male Chimpanzee (Pan troglodytes troglodytes) trying to catch fallen fruits using stick as a tool, Conkouati-Douli National Park, Republic of Congo, Africa.

Markus Varesvuo / Robin (Erithacus rubecula) carrying a red berry in its beak as it takes off, Parainen Uto, Finland. October.

Henley Spiers / Striped marlin (Kajikia audax) and California sea lion (Zalophus californianus) competing for food as they hunt down baitfish, Magdalena Bay, Baja California Sur, Mexico, Pacific Ocean.

Alex Mustard / RF - Portrait of Spinecheek anemonefish (Premnas biaculeatus) in its host Bubble-tip anemone (Entacmaea quadricolor) on a coral reef. Raja Ampat, West Papua, Indonesia. Ceram Sea. (This image may be l...

Alex Mustard / RF - Grey seal (Halichoerus grypus) relaxing in a bed of kelp (Laminaria digitata), with two seals in the background. Farne Islands, Northumberland, England, United Kingdom. British Isles. North Sea....

Jo-Anne McArthur / We Animals / One piglet from a large litter looks around her small crate as her mother lies immobile beside her. Sows are kept in gestation crates and then farrowing crates in industrial farms, which is the standa...

Jen Guyton / Mozambican wildlife veterinarian Mercia Angela on her daily walk with Boogli, a female Cape pangolin confiscated as infant by Gorongosa's law enforcement team. Boogli's mother had already b...

Maxime Aliaga / Keepers holding hands of infant Sumatran orangutan (Pongo abelii) as they walk to 'forest school' ,Quarantine centre of SOCP (Sumatran Orangutan Conservation Program) near Medan, North Sumatra

David Fleetham / Close up at the dental plates of Three color parrotfish (Scarus tricolor) as it comes in for a bite of hard coral, Fiji.

Alex Mustard / Leafy seadragon (Phycodurus eques) demonstrates the effectiveness of its camouflage as it shelters amongst seaweeds. This individual is a male carrying eggs. Wool Bay Jetty, Edithburgh, Yorke Peninsul...

Alex Mustard / School of Oriental sweetlips (Plectorhinchus vittatus) gather tightly together as they rest during the day, with a Clown triggerfish (Balistoides conspicillum) and Midnight snappers (Macolor macularis...

Oscar Dewhurst / Western marsh harrier (Circus aeruginosus) being mobbed by black-headed gulls (Chroicocephalus ridibundus) as it takes off with chick. Suffolk, England, UK. June

Shane Gross / Lemon shark juvenile (Negaprion brevirostris) trying to feed on the leaves of a red mangrove (Rhizophora mangle). As pups, the sharks have to learn to hunt for themselves and sometimes make mistakes....

David Tipling / Flock of Knot (Calidris canutus) chased by a Peregrine as they arrive to roost at high tide, Cormorants in foreground, Snettisham RSPB Reserve, The Wash, Norfolk, September.

Edwin Giesbers / RF - Cockchafer beetle (Melolontha melolontha). France. May. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - White-legged damselfly (Platycnemis pennipes) peering over Oxeye daisy (Leucanthemum vulgare) flower. The Netherlands. August. (This image may be licensed either as rights managed or royalty free...

Ingo Arndt / Close up of Honey bees (Apis mellifera) forming 'chains' and a 'ball' at the top of their tree hole nest as they establish a colony, Germany.

Pal Hermansen / RF - Double exposure shot of sheet of ice on Greenland Sea with snow covered mountains in background. Krossfjorden, Svalbard, Norway. April 2018. (This image may be licensed either as rights managed o...

Alex Mustard / Saddleback anemonefish (Amphiprion polymnus) barks a warning as it guards a clutch of developing eggs (beneath it) laid on a small stone, below a fold in its home, a Haddon's sea anemone (Stichoda...

Andy Rouse / RF - Roe deer (Capreolus capreolus) feeding on dandelion seed heads at sunset, UK. May. UK. (This image may be licensed either as rights managed or royalty free.)

Anup Shah / African elephant (Loxodonta africana) babies playing . Masai Mara National Reserve, Kenya. July 2017.

Anup Shah / Lion (Panthera leo) males walking together . Masai Mara National Reserve, Kenya.

Carol Walker / RF - Percheron horse trotting through snow. Alberta, Canada. Febraury. (This image may be licensed either as rights managed or royalty free.)

Carol Walker / RF - Knabstrupper stallion with leopard spotting colouration, running in pasture. Germany. May. (This image may be licensed either as rights managed or royalty free.)

Brandon Cole / Oceanic whitetip shark (Carcharhinus longimanus), view from above as it swims away. Egypt, Red Sea.

Sergio Hanquet / Face mask, used as PPE during Covid-19, improperly disposed of in the sea, Tenerife, Canary Islands

Jack Dykinga / Yellow-headed blackbird (Xanthocephalus xanthocephalus) flock murmuration as they take off from the marsh at dawn, Whitewater Draw, Arizona State Game and Fish Reserve, USA. January.

Doug Perrine / Humpback whale (Megaptera novaeangliae) breaching as calf splashes down after a breach; windmills in background produce renewable energy; Hawaii Humpback Whale National Marine Sanctuary, Maui, Hawaii.

Tui De Roy / Alcedo giant tortoise (Chelonoidis vandenburghi), Alcedo Volcano, Isabela Island. This is where the largest extant population exists, acting as ecosystem engineers by maintaining open meadows and digg...

Doug Gimesy / Forest and Wildlife officers Lachlan Clarke (right) and Emily Cordy watch as a mother koala (Phascolarctos cinereus) and her joey are released. Editorial use only.

Nick Hawkins / Tail of a North Atlantic right whale (Eubalaena glacialis) as it dives, Gulf of Saint Lawrence, Canada. July 2019. IUCN Status: Endangered.

Nick Hawkins / View of the Rio Celeste waterfall, tropical rainforest of Tenorio Volcano National Park, Costa Rica. The blue color arises due to a physical phenomenon known as Mie scattering triggered by the presenc...

Nick Hawkins / View of the Rio Celeste waterfall, tropical rainforest of Tenorio Volcano National Park, Costa Rica. The blue colour arises due to a physical phenomenon known as Mie scattering triggered by the presen...

David Hall / Harbor seal (Phoca vitulina) using a large,encrusted boulder as a tool to scratch itself against, Gowland Harbour, Quadra Island, British Columbia, Canada. March.

Nick Garbutt / RF - Ring-tailed lemurs (Lemur catta) back lit and sun bathing at first light. Berenty Private Reserve, southern Madagascar. (This image may be licensed either as rights managed or royalty free.)

Terry Whittaker / RF - Arctic fox cub (Alopex lagopus) at den. Hornvik, Hornstrandir, Westfjords, Iceland. July. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - Sand lizard (Lacerta agilis) the Netherlands. (This image may be licensed either as rights managed or royalty free.)