Bence Mate / Two Long eared owl chicks (Asio otus) perching on tree branch in daylight, Pusztaszer, Kiskunsagi National Park, Hungary

Paul D Stewart / Illustration of Giant Octopus (Octopus dofleini) attacking a ship, 1815 copperplate engraving from Bertuch's 'Bilderbuch fur kinder' 16 plate 5. with contemporary colour. 'Colosal Polypus' (octopus) a...

Chris Gomersall / Barn owl (Tyto alba) adult hunting in daylight, Norfolk, UK

Chris Gomersall / Barn owl (Tyto alba) adult hunting in daylight, Norfolk, UK

Chris Gomersall / Barn owl (Tyto alba) adult hunting in daylight, Norfolk, UK

Pal Hermansen / Tawny owl (Strix aluco), portrait in daylight. Akershus, Norway. April.

David Fleetham / Jack (Caranx sp), shoal of juveniles following Southern stingray (Dasyatis americana), searching for prey. Bahamas.

Nick Upton / Daubenton's bat (Myotis daubentonii) migrant hunting in daylight for aquatic insects over coastal grassland, Matsalu Bay, Haeska, Estonia, September.

Nick Upton / Daubenton's bat (Myotis daubentonii) migrant hunting in daylight for insects on water surface of a tidal creek, Matsalu Bay, Haeska, Estonia, September.

Alex Mustard / Basket star (Gorgonocephalus eucnemis) climbs up on red soft coral (Eunephthya rubiformis) to feed during daylight. Browning Pass, Port Hardy, Vancouver Island, British Columbia, Canada. Queen Charlot...

Tui De Roy / Brown kiwi (Apteryx mantelli) watched by group of school children. On display in Nocturnal House, where artificial lighting produces reversed daylight cycle, Orana Wildlife Park, Christchurch, South I...

Tui De Roy / Brown kiwi (Apteryx mantelli) in Nocturnal House, where artificial lighting produces reversed daylight cycle, Orana Wildlife Park, Christchurch, South Island, New Zealand, February. Captive

Tui De Roy / Brown kiwi (Apteryx mantelli) being photographed by tourist. On display in Nocturnal House, where artificial lighting produces reversed daylight cycle, Orana Wildlife Park, Christchurch, South Island,...

Tui De Roy / Brown kiwi (Apteryx mantelli) in Nocturnal House, where artificial lighting produces reversed daylight cycle, Orana Wildlife Park, Christchurch, South Island, New Zealand, February. Captive

Tui De Roy / Brown kiwi (Apteryx mantelli) in Nocturnal House, where artificial lighting produces reversed daylight cycle, Orana Wildlife Park, Christchurch, South Island, New Zealand, February. Captive

Tui De Roy / Brown kiwi (Apteryx mantelli) in Nocturnal House, where artificial lighting produces reversed daylight cycle, Orana Wildlife Park, Christchurch, South Island, New Zealand, February. Captive

Kirkendall-Spring / Buddhist shrine in Khao Luang Cave with daylight lighting up figure of the Buddha. Phetchaburi, Thailand, September 2014.

Kim Taylor / White-tailed nightjar (Caprimulgus cayennensis) resting during daylight. Tobago, West Indies.

Markus Varesvuo / Short-eared Owl (Asio flammeus) in flight, Liminka Finland

Alex Mustard / Spanish dancer nudibranch (Hexabranchus sanguineus) moves across coral reef in daylight. It is unusually to see this large nudibranch during daylight. Nuweiba, Sinai, Egypt. Gulf of Aqaba, Red Sea.

Mike Read / Common nighthawk (Chordeiles minor) in flight during daylight, Montana, USA

Jeff Wilson / The sun never sets during the 24 hour daylight of the Arctic summer, Svalbard, Spitzbergen, Norway, July 2009, Taken on location for the BBC series, Frozen Planet.

Gerrit Vyn / Great Grey Owl (Strix nebulosa) perched in tree, in daylight. Alberta, Canada. June.

Andy Sands / Peach blossom moth (Thyatira batis) resting during daylight, Hertfodshire, England, UK

Andy Sands / Peach blossom moth (Thyatira batis) resting during daylight, Hertfodshire, England, UK

Konstantin Mikhailov / Scots pine, dwarf bushes, moss and lichen beside Kandalakshsky Bay, White Sea, N Russia, daylight at night, July 2009

Norbert Wu / Mushroom Coral (Fungiidae) show fluorescence (and not) under normal daylight filtered by seaswater, 40 feet deep, Komodo Island, Indonesia. Sequence 1 of 2

Gary K. Smith / Little Owl (Athene noctua) perched on derelict barn roof in daylight, Norfolk, UK, August

PREMAPHOTOS / Stick insect / walkingstick (Circia sp.) spends the hours of daylight well camouflaged on tree trunks; in rainforest, Madagascar

PREMAPHOTOS / Willow beauty moth (Peribatodes rhomboidaria) camouflaged while resting on bark during daylight, UK

PREMAPHOTOS / Double-square-spot moth (Xestia triangulum) at rest during daylight on a fallen log in woodland, UK

Kim Taylor / Oilbirds {Steatornis caripensis} roosting in a cave during daylight, Trinidad, West Indies

Chris Gomersall / Barn owl (Tyto alba) adult hunting in daylight, Norfolk, UK

Chris Gomersall / Barn owl (Tyto alba) adult hunting in daylight, Norfolk, UK

Pete Oxford / Helmet vanga on nest {Euryceros prevostii}. Masoala peninsular, Madagascar.

Paul Hobson / Glow worm beetle female in daylight {Lampyris noctiluca} Peak District, UK

Paul Hobson / Glow worm beetle female in daylight {Lampyris noctiluca} Peak District, Derbyshire, UK

Tui De Roy / Kemp's ridley turtle (Lepidochelys kempii) female, coming ashore to nest in daylight, Rancho Nuevo Beach, Tamaulipas, Mexico. Critically endangered.

Tui De Roy / Kemp's ridley turtle (Lepidochelys kempii) female, coming ashore to nest in daylight, Rancho Nuevo Beach, Tamaulipas, Mexico. Critically endangered.

SCOTLAND: The Big Picture / Female Pine marten (Martes martes) foraging in daylight, Munlochy, Black Isle, Scotland, UK. May.

Tui De Roy / Brown kiwi (Apteryx mantelli) in nocturnal kiwi house with reversed daylight cycle, Orana Wildlife Park, Christchurch, New Zealand. February

Tui De Roy / Brown kiwi (Apteryx mantelli) in nocturnal kiwi house with reversed daylight cycle, Orana Wildlife Park, Christchurch, New Zealand. February

Tui De Roy / Brown kiwi (Apteryx mantelli) in nocturnal kiwi house with reversed daylight cycle, Orana Wildlife Park, Christchurch, New Zealand. February

Tui De Roy / Brown kiwi (Apteryx mantelli) in nocturnal kiwi house with reversed daylight cycle, Orana Wildlife Park, Christchurch, New Zealand. February

Tui De Roy / Brown kiwi (Apteryx mantelli) in nocturnal kiwi house with reversed daylight cycle, Orana Wildlife Park, Christchurch, New Zealand. February

Tui De Roy / Brown kiwi (Apteryx mantelli) in nocturnal kiwi house with reversed daylight cycle, Orana Wildlife Park, Christchurch, New Zealand. February

David Hall / Cross jellyfish (Mitrocoma cellularia) split level view at night, Hussar Bay, Nigei Island, Queen Charlotte Strait, British Columbia, Canada. Large swarms of Cross Jellies enter quiet bays at night, a...

Nick Upton / Palmate newt (Lissotriton helveticus) nymph or eft with external gills and legs in a garden pond in daylight, Wiltshire, UK, July.

Nick Upton / Palmate newt (Lissotriton helveticus) nymph or eft with external gills and legs in a garden pond in daylight, Wiltshire, UK, July.