Alan Williams / Footpath and farmland covered with hoar frost on a bitterly cold day in winter, near Neston, Cheshire, UK. December.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female lying on day bed, scratching her chest, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female sitting on day bed and grooming, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female sitting on day bed and grooming, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female sitting on day bed, Virunga National Park, Democratic Republic of Congo. 1996.

Jabruson Motion / Eastern mountain gorilla (Gorilla beringei beringei) female walking through vegetation and then sitting down on her day bed, Virunga National Park, Democratic Republic of Congo. 1996.

Kirkendall-Spring / RF - Woman day hiking on Trail 216D above the Pumus Plains on a sunny day, Mount St Helens National Volcanic Monument, Cascade Mountains, Washington, USA. July, 2022. Model released. (This image may b...

Neil Aldridge / Leopard (Panthera pardus) female lying on a fallen tree in late afternoon light. The animal looks around. Okavango Delta, Botswana.

David Tipling / Barn owl (Tyto alba) in flight over field in late afternoon, Norfolk, UK. March.

David Tipling / Long-eared owl (Asio otus) flying over meadow in late afternoon, Glandford, Norfolk, UK. February.

David Tipling / Long-eared owl (Asio otus) flying over meadow and looking for prey in late afternoon, Glandford, Norfolk, UK. February.

Brian Bevan / Common cuckoo (Cuculus canorus) male perched in Hawthorn bush (Crataegus monogyna) on windy day, Bedfordshire, UK.

Brian Bevan / Common cuckoo (Cuculus canorus) male calling whilst perched in tree on windy day, Bedfordshire, UK.

Brian Bevan / Common cuckoo (Cuculus Canorus) male perched in Hawthorn bush (Crataegus monogyna) on windy day, Bedfordshire, UK.

Doug Perrine / Day octopus (Octopus cyanea) resting on Fringe coral (Porites compressa) in coral reef, Honokohau, North Kona, Big Island, Hawaiian Islands, Pacific Ocean.

Doug Perrine / Day octopus (Octopus cyanea) sitting on Lobe coral (Porites lobata) and placing tentacles beneath it to flush out fish, shadowed by Manybar goatfish (Parupeneus multifasciatus), their hunting partner...

Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) hanging from branch, fanning itself on a hot day, Yarra River, Kew, Victoria, Australia. January.

Staffan Widstrand / Group of school children having a day out on the River Maas, wading in river with fishing nets, GrensMaas rewilding area, The Netherlands. June, 2022.

Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) stretching wing to warm it in sunlight as another sleeps beside it, Yarra Bend Park, Victoria, Australia.

Neil Aldridge / Timelapse of mountain shadow moving over the confluence of the Limpopo and Shashe Rivers at the end of a summer day, Mapungubwe National Park, Greater Mapungubwe Transfrontier Conservation Area, South...

Doug Gimesy / Bat rescuer, carer and founder of Fly-by-night bat clinic, Tamsyn Hogarth, comforting a young Grey-headed flying-fox (Pteropus poliocephalus) rescued during a heat-stress event at the Yarra Bend colon...

Roland Seitre / Ornate day gecko (Phelsuma ornata) resting on tree branch, L'ile aux Aigrettes, Mauritius.

Roland Seitre / Round Island day gecko (Phelsuma guentheri) resting on tree trunk, L'ile aux Aigrettes, Mauritius.

Roland Seitre / Ornate day gecko (Phelsuma ornata) resting on tree trunk, L'ile aux Aigrettes, Mauritius.

Roland Seitre / Two Bluetail day geckos (Phelsuma cepediana) basking on rocks, Mauritius.

Roland Seitre / Bluetail day gecko (Phelsuma cepediana) portrait, Mauritius.

Roland Seitre / Round Island day gecko (Phelsuma guentheri) resting on tree trunk, L'ile aux Aigrettes, Mauritius.

Roland Seitre / Round Island day gecko (Phelsuma guentheri) resting on tree trunk, L'ile aux Aigrettes, Mauritius.

Roland Seitre / Bluetail day gecko (Phelsuma cepediana) male, resting on branch, Black River Gorges National Park, Mauritius.

Roland Seitre / Bluetail day gecko (Phelsuma cepediana) female, resting on branch, Black River Gorges National Park, Mauritius.

Roland Seitre / Three Seychelles small day geckos (Phelsuma astriata) resting on plant, La Digue, Seychelles.

Jouan & Rius / Uist island as seen from Isle of Skye on cloudy day, Inner Hebrides, Scotland, UK, Atlantic Ocean, May 2017.

David Fleetham / Day octopus (Octopus cyanea) swimming beneath rocky overhang, Hawaii, Pacific Ocean.

Stephen Dalton / Three species of Hawkmoths, Poplar hawkmoths (Laothoe populi), Elephant hawkmoths (Deilephila elpenor) and Pine hawkmoths (Sphinx pinastri), resting on bench after being released from moth trap, UK. J...

David Fleetham / Day octopus (Octopus cyanea) clinging on to a rock on the seabed, Hawaii, Pacific Ocean.

Tui De Roy / Group of people from local community holding Leatherback turtle (Dermochelys coriacea) hatchlings, part of a conservation effort to keep them safe during the day and release them at night, Grande Rivi...

NaturePL Showreels / Nature is full of transitions. Day becomes night, tides rise and fall, and caterpillars become butterflies. Embrace change with our 'Transitions' showreel!

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) group standing on ice, Queen Maud Land, Antarctica.

Robin Chittenden / Two people fishing from the beach on a stormy day, Cley, Norfolk, UK. September, 2022.

David Tipling / Barn owl (Tyto alba) in flight, hunting during the day over a coastal meadow, North Norfolk, UK. May.

David Tipling / Barn owl (Tyto alba) hunting during the day over a coastal meadow, North Norfolk, March.

David Tipling / Barn owl (Tyto alba) perched on branch in woodland during the day, North Norfolk, UK. February.

David Tipling / Barn owl (Tyto alba) hunting during the day over a coastal meadow with Wiveton Church in background, North Norfolk, UK. February.

David Tipling / Barn owl (Tyto alba) hunting during the day over a coastal meadow, North Norfolk, UK. February.

Philippe Clement / Row of modern beach houses along on sandy beach looking out to sea on a sunny day, Groede, Zeeland, The Netherlands, North Sea. May, 2022.

David Fleetham / Day octopus (Octopus cyanea) releasing an ink cloud in an attempt to escape a predator, Hawaii, Pacific Ocean,

Tui De Roy / People from local community holding Leatherback turtle (Dermochelys coriacea) hatchlings, a conservation effort to keep them safe during the day and release them at night when avian predators are abse...

Tui De Roy / Local children rescuing Leatherback turtle (Dermochelys coriacea) hatchlings from beach during the day to protect them from predators. The hatchlings are released after sunset, Grande Riviere, Trinida...

Tui De Roy / Local girl sitting on beach next to Leatherback turtle (Dermochelys coriacea) hatchlings emerging from nest, Grande Riviere, Trinidad Island, Trinidad & Tobago, Caribbean.

Tui De Roy / Two women photographing Leatherback turtle (Dermochelys coriacea) hatchlings emerging from nest on beach, Grande Riviere, Trinidad Island, Trinidad & Tobago, Caribbean.

Tui De Roy / People from local community holding Leatherback turtle (Dermochelys coriacea) hatchlings, a conservation effort to keep them safe during the day and release them at night when avian predators are abse...

Tui De Roy / Local girl sitting on beach next to Leatherback turtle (Dermochelys coriacea) hatchlings emerging from nest, Grande Riviere, Trinidad Island, Trinidad & Tobago, Caribbean.

Tom Vierus / Acropora (Acropora sp.) hard coral spawning into the water during the night. This once-a-year event is influenced by several factors: temperature, day length, possible chemical cues and the lunar cycl...

Adrian Davies / Corn marigolds (Glebionis segetum), Cornflowers (Centaurea cyanus) and other meadow flowers on a windy day, UK. Blurred motion.

Konrad Wothe / Day-flying moth (Syntomis phegea) resting on leaf, Dolomites, Italy. July.

Adrian Davies / Maple seed (Acer sp.) fossil from the Oligocene period (c. 30 million years old), compared with modern day seed from tree of a similar species (Acer japonicum), studio environment.

Nick Garbutt / Lion (Panthera leo) male, juvenile, resting in tree during middle of the day to escape the heat, near Ndutu, Ngorongoro Conservation Area / Serengeti National Park border, Tanzania.

Nick Garbutt / Lion (Panthera leo) female, resting in tree during middle of day to escape the heat with juvenile male Lion approaching, near Ndutu, Ngorongoro Conservation Area / Serengeti National Park border, Tanz...

Nick Garbutt / Lion (Panthera leo) female, resting in tree during middle of day to escape the heat near Ndutu, Ngorongoro Conservation Area / Serengeti National Park border, Tanzania.

Nick Garbutt / Spectral tarsier (Tarsius spectrum) resting in tree during the day, Tangkoko National Park, northern Sulawesi, Indonesia.

Charlie Hamilton-James / Lion (Panthera leo) pride feeding on Zebra (Equus quagga) carcass, killed earlier that day, Serengeti National Park, Tanzania, Africa.

Doug Perrine / Threadfin butterflyfish (Chaetodon auriga) portrait, showing darkened colour pattern during the day, normally displayed at night, North Kona, Hawaii, Pacific Ocean.

Georgette Douwma / Composite image of marine invertebrates on black background. Top row from left: Tube anemone (Ceriantharia), Yellow sea cucumber (Colochirus robustus), Nudibranch (Nembrotha lineolata), Squat shri...

Fred Bavendam / Day octopus (Octopus cyanea) resting on top of a large sponge on a coral reef surrounded by shoal of reef fish, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Pair of Day octopuses (Octopus cyanea) male, on right, raising several arms as female approaches, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Pair of Day octopuses (Octopus cyanea) mating, male on left, reaching out with hectocotylus arm to place a spermatophore into the oviduct of female, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Pair of Day octopuses (Octopus cyanea) mating, male on left, reaching out with hectocotylus arm to place a spermatophore into the oviduct of female, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Pair of Day octopuses (Octopus cyanea) mating, male on lower right, reaching out with hectocotylus arm to place a spermatophore into the oviduct of female, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Day octopus (Octopus cyanea) resting on reef, grooming, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Day octopus (Octopus cyanea) resting on reef, grooming, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Day octopus (Octopus cyanea) spreading its arms and webbing over rock to trap prey, with Blue-spotted peacock grouper (Cephalopholis argus) and Goldsaddle goatfish (Parupeneus cyclostomus) watching fo...

Fred Bavendam / Day octopus (Octopus cyanea) spreading its arms and webbing over a rock to trap prey, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Day octopus (Octopus cyanea) swimming across the reef displaying different coloration pattern on each side of body, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Day octopus (Octopus cyanea) male, at entrance to den, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Pair of Day octopuses (Octopus cyanea) resting in den, female, on right, gathering stones to block den entrance, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Day octopus (Octopus cyanea) displaying colouration change, with skin papillae raised, Bali, Indonesia, Pacific Ocean. Sequence 2 of 2.

Fred Bavendam / Day octopus (Octopus cyanea) displaying a smooth-skinned, uniform colouration, moving across a patch of Corallimorpharians while foraging, with a Coral grouper (Cephalopholis miniata) following, Phot...

Fred Bavendam / Day octopus (Octopus cyanea) climbing over large rock, hunting, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Day Octopus (Octopus cyanea) "flashing" the colour of the webbing between its arms to white, probably to startle and flush out prey, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Day octopus (Octopus cyanea) resting on the reef, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Two Day octopuses (Octopus cyanea) males, fighting over a nearby female, Bali, Indonesia, Pacific Ocean.

Fred Bavendam / Two Day octopuses (Octopus cyanea) interacting, the octopus on the left displaying mating colouration, octopus on the right is displaying colours that signal displeasure or anger, Andaman Sea, Thailan...

Fred Bavendam / Two Day octopuses (Octopus cyanea) interacting, the octopus on the right displaying mating colouration, octopus on the left is displaying colours that signal displeasure or anger, Andaman Sea, Thailan...

Fred Bavendam / Day octopus (Octopus cyanea) displaying dark red colouration with a broad white stripe down the middle, this usually signals anger or displeasure at the behavior of another octopus, Andaman Sea, Thail...

Fred Bavendam / Pair of Day octopuses (Octopus cyanea) mating, male, on right, exhibiting mating colours, reaching out with its hectocotylus arm to place a spermatophore into the oviduct of the female, Ambon, Indones...

David Fleetham / Day octopus (Octopus cyanea) larval stage, 1 inch in size, drifting in open ocean, Hawaii, Pacific Ocean.

Joel Sartore / Photo Ark / Mauritius ornate day gecko (Phelsuma ornata) portrait, Josh'sFrogs. Captive, occurs in Mauritius.

Joel Sartore / Photo Ark / Mauritius ornate day gecko (Phelsuma ornata) portrait, Josh'sFrogs. Captive, occurs in Mauritius.

Joel Sartore / Photo Ark / Mauritius ornate day gecko (Phelsuma ornata) portrait, Josh'sFrogs. Captive, occurs in Mauritius.

Joel Sartore / Photo Ark / Gold dust day gecko (Phelsuma laticauda laticauda) male, portrait, Josh'sFrogs. Captive, occurs in Madagascar and Comoros.

Joel Sartore / Photo Ark / Gold dust day gecko (Phelsuma laticauda laticauda) male, portrait, Josh'sFrogs. Captive, occurs in Madagascar and Comoros.

Joel Sartore / Photo Ark / Cheke's day gecko (Phelsuma abbotti chekei) male, portrait, Josh'sFrogs. Captive, occurs in Madagascar.

Joel Sartore / Photo Ark / Cheke's day gecko (Phelsuma abbotti chekei) male, portrait, Josh'sFrogs. Captive, occurs in Madagascar.

Bruce Thomson / Koala (Phascolarctos cinereus) resting during the day in large Eucalypt (Eucalyptus sp.) tree, Goonderoo Nature Reserve, Queensland, Australia.

Mike Read / European nightjar (Caprimulgus europaeus) day roosting in tree, New Forest National Park, Hampshire, England, UK. June.

Michael Hutchinson / River Avon timelapse from low to high tide and day to night transition, view towards Clifton and the Suspension Bridge, Bristol, UK, March 2008.