Dave Watts / Eastern grey kangaroo (Macropus giganteus) with joey in pouch, Australian Capital Territory, Australia, September

Dave Watts / Platypus {Ornithorhynchus anatinus} swimming underwater Tasmania, Australia. Composite.

Dave Watts / Koala with young in tree {Phascolarctos cinereus} Queensland, Australia

Dave Watts / Wedge-tailed eagle {Aquila audax fleayi} tasmanian sub species, adult portrait, Australia

Dave Bevan / Harvest mouse (Micromys minutus) climbing on corn stalks, UK, July. Captive.

Dave Bevan / Harvest mouse (Micromys minutus) climbing a Thistle (Cirsium), UK, July. Captive.

Dave Bevan / Harvest mouse (Micromys minutus) grooming, sitting on a wheat seedhead, UK, July. Captive.

Dave Bevan / Harvest mouse (Micromys minutus) climbing up and chewing on a thistle (Cirsium) stem, UK, July. Captive.

Dave Bevan / Common wasp (Vespula vulgaris) adding material to nest, Carmarthenshire, Wales, UK, July.

Dave Bevan / Female Pantaloon bee (Dasypoda hirpites) returning to burrow, Bedfordshire, England, UK, July.

Dave Bevan / Pair of Sand martins (Riparia riparia) feeding chicks, Carmarthenshire, Wales, UK, July.

Dave Bevan / Male Blackbird (Turdus merula) catching European eel (Anguilla anguilla) elvers as they migrate up a waterfall, Ceredigion, Wales, UK, July.

Dave Bevan / Male Blackbird (Turdus merula) catching European eel (Anguilla anguilla) elvers as they migrate up a waterfall, Ceredigion, Wales, UK, July.

Dave Bevan / European eel (Anguilla anguilla) elvers migrating up a wet rock next to a waterfall, Ceredigion, Wales, UK, July.

Dave Bevan / Beaver (Castor fiber) swimming across a pond, reintoduced by the Welsh Beaver Project, Carmarthenshire, Wales, UK, June.

Dave Bevan / Clear felling harvester working in a conifer plantation, Carmarthenshire, Wales, UK, June.

Dave Bevan / Female Chaffinch (Fringilla coelebs) bringing moss to nest and incorporating it into nest before flying out of frame, Carmarthenshire, Wales, UK, May.

Dave Bevan / Female Chaffinch (Fringilla coelebs) shaping nest with her body and wings, Carmarthenshire, Wales, UK, May.

Dave Bevan / Male Pied flycatcher (Ficedula hypoleuca) calling to establish territory and attract a mate, Carmarthenshire, Wales, UK, May.

Dave Bevan / Slow motion clip of a pair of Common swifts (Apus apus) approaching and entering a nest hole in limestone cliff, Norfolk, England, UK, May.

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) descending down a wooden electricity pole, Carmarthenshire, Wales, UK, June.

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) flying to a nest hole in an electricty pole and feeding chick, Carmarthenshire, Wales, UK, June.

Dave Bevan / Common raven (Corvus corax) flying to nest to feed fledglings, Carmarthenshire, Wales, UK, May.

Dave Bevan / Slow motion clip of two pairs of Jackdaws (Corvus monedula) squabbling over nest site, Worcestershire, England, UK, May.

Dave Bevan / Slow motion clip of a Robin (Erithacus rubecula) flying to nest and feeding chicks, removes faecal sac, Carmarthenshire, Wales, UK, May.

Dave Bevan / Slow motion clip of a Tawny owl (Strix aluco) leaving nest site in hollow tree, Carmarthenshire, Wales, UK, April.

Dave Bevan / Welsh mountain sheep cleaning afterbirth from a lamb before a second lamb is born, Carmarthenshire, Wales, UK, March.

Dave Bevan / Grey plover (Pluvialis squatarola) eating a marine flatworm, Norfolk, England, UK, February.

Dave Bevan / Robin (Erithacus rubecula) singing, Carmarthenshire, Wales, UK, February.

Dave Bevan / Red fox (Vulpes vulpes) digging out a mouse nest from under a raised bed, filmed at night using an infra red camera, Carmarthenshire, Wales, UK, January.

Dave Bevan / Juvenile male Wild boar (Sus scrofa) fighting to establish seniority, Gloucestershire, England, UK, December.

Dave Bevan / Juvenile Brown rats (Rattus norvegicus) raiding a chicken nest in a barn, filmed at night using an infra red camera, Carmarthenshire, Wales, UK, December.

Dave Bevan / Juvenile Brown rat (Rattus norvegicus) entering live trap and escaping, filmed at night using an infra red camera, Carmarthenshire, Wales, UK, November.

Dave Bevan / Slow motion clip of a Jay (Garrulus glandarius) feeding from a peanut string during a snowstorm, Carmarthenshire, Wales, UK, November.

Dave Bevan / Female Giant wood wasp (Uroceras gigas) inserting ovipositor into tree stump to lay eggs, Carmarthenshire, Wales, UK, September.

Dave Bevan / Herring gull (Larus argentatus) hunting for worms, stamping on ground with feet, Ceredigion, Wales, UK, November.

Dave Bevan / Murmuration of Common starlings (Sturnus vulgaris) flying above pier, Aberystwyth, Ceredigion, Wales, UK, October.

Dave Bevan / Juvenile Brown rat (Rattus norvegicus) feeding on grain in a barn, filmed at night using infra red, Carmarthenshire, Wales, UK, October.

Dave Bevan / Bittern (Botaurus stellaris) hunting and catching a fish, Suffolk, England, UK, October.

Dave Bevan / Elephant hawk-moth (Deilephila elpenor) caterpiller climbing down a Fuchsia (Fuchsia) plant, Carmarthenshire, Wales, UK, September.

Dave Bevan / Bank vole (Myodes glareolus) feeding from a bird feeder anlongside a Coal tit (Periparus ater) and Blue tit (Cyanistes caeruleus), Carmarthenshire, Wales, UK, September.

Dave Bevan / Swallow (Hirundo rustica) feeding juveniles perched on a rope near nest in a barn, Carmarthenshire, Wales, UK, September.

Dave Bevan / Pair of Swallows (Hirundo rustica) feeding chicks at nest in a barn, filmed using infra red, Carmarthenshire, Wales, UK, September.

Dave Bevan / Slow motion clip of Black garden ants (Lasius niger) moving exposed eggs underground, Carmarthenshire, Wales, UK, September.

Dave Bevan / Slow motion clip of a Swallow (Hirundo rustica) flying into a barn in heavy rain, Carmarthenshire, Wales, UK, September.

Dave Bevan / Eastern grey squirrel (Sciurus, Carolinensis) entering top of a bird feeder, struggling to get out again, Carmarthenshire, Wales, UK, June.

Dave Bevan / Slow motion clip of a Blue tit (Cyanistes caeruleus) flying to nest box, enters to feed nestlings and leaves, Carmarthenshire, Wales, UK, June.

Dave Bevan / Two male Grey seals (Halichoerus grypus) fighting in surf, with a female and juvenile nearby, Norfolk, England, UK. December.

Dave Bevan / Grey seal (Halichoerus grypus) pup sheltering amongst sand dunes and Maram grass (Ammophila) whilst its mother is away feeding, Norfolk, England, UK. December.

Dave Bevan / Pair of Grey seals (Halichoerus grypus) mating on a beach, Norfolk, England, UK. December.

Dave Bevan / Pair of Grey seals (Halichoerus grypus) mating on a beach, Norfolk, England, UK. December.

Dave Bevan / Juvenile Herring gull (Larus argentatus) pecking a suckling Grey seal (Halichoerus grypus) pup, Norfolk, England, UK. December.

Dave Bevan / Grey seal (Halichoerus grypus) pup playing with a small piece of wood on a beach, Norfolk, England, UK. December.

Dave Bevan / Large white (Pieris brassicae) caterpillars eating Broccoli (Brassica oleracea) leaves, with Small white (Pieris rapae) caterpillars, Carmarthenshire, Wales, UK. September.

Dave Bevan / Female Blackbird (Turdus merula) feeding chicks at nest, removing faecal sacs, Carmarthenshire, Wales, UK, June.

Dave Watts / Female Western grey kangaroo (Macropus fuliginosus) rolling with a large joey in her pouch, Kangaroo Island, South Australia.

Dave Watts / Female Tamar wallaby (Macropus eugenii) grazing with a joey in her pouch, Kangaroo Island, South Australia.

Dave Watts / Two female Australian sea lions (Neophoca cinerea) playing and interacting on a beach, with others nearby, Seal Bay Conservation Area, Kangaroo Island, South Australia.

Dave Watts / Female Australian sea lion (Neophoca cinerea) scratching and rolling on a beach, Seal Bay Conservation Area, Kangaroo Island, South Australia.

Dave Watts / Male Red backed shrike (Lanius collurio) feeding on a mouse at its larder, France, June.

Dave Watts / Koala (Phascolarctos cinereus), eating Eucalyptus leaves, Victoria, Australia.

Dave Bevan / Male Great spotted woodpecker (Dendrocopos major) entering nest hole and leaving with a faecal sac, Carmarthenshire, Wales, UK, June.

Dave Watts / Northern bald ibis (Geronticus eremita) feeding, Morocco, Critically endangered species.

Dave Watts / Hermit ibis (Geronticus eremita) flock in flight, Morocco. Critically endangered.

Dave Watts / Dark green fritillary (Argynnis aglaja) on pink clover, south west France.

Dave Watts / Addax (Addax nasomaculatus) rear view, captive in Rabat Zoo, Morocco. Critically endangered.

Dave Watts / Hermit ibis (Geronticus eremita) colony, near Tamri, Morocco. Critically endangered.

Dave Watts / Golden lion tamarin (Leontopithecus rosalia rosalia) captive in zoo. Occurs in Brazil.

Dave Watts / Platypus (Ornithorhynchus anatinus) swimming in lake, Tasmania, Australia.

Dave Watts / Striated Fieldwren (Calamanthus fuliginosus) Tasmania, Australia

Dave Watts / Greater flamingos (Phoenicopterus ruber) in flight at dawn, Camargue, France

Dave Watts / Southern cassowary (Casuarius casuarius) adult male with chicks, World Heritage National Park rainforest of the Wet Tropics, north Queensland, Australia

Dave Watts / Mareeba rock wallaby (Petrogale mareeba) family, near Mareeba, Queensland, Australia, November

Dave Watts / Mareeba rock wallaby (Petrogale mareeba) portrait, near Mareeba, Queensland, Australia, November

Dave Watts / Tasmanian Devil (Sarcophilus harrisii) running blur, Cradle Mountain, Tasmania, Australia

Dave Watts / Regent bowerbird (Sericulus chrysocephalus) male perched, Lamington National Park, Queensland, Australia, October

Dave Watts / Musk lorikeet (Glossopsitta concinna) amongst flowers in a Eucalyptus tree, south-east Tasmania, Australia, February

Dave Watts / Bridled nailtail wallaby (Onychogalea fraenata) Queensland, Australia, Endangered species, October

Dave Watts / Eastern grey kangaroo (Macropus giganteus) bounding, Australian Capital Territory, Australia, September

Dave Watts / Eastern grey kangaroo (Macropus giganteus) family group, male, female and large joey, Tasmania, Australia, February

Dave Watts / Eastern grey kangaroo (Macropus giganteus) two males boxing, Australian Capital Territory, Australia, December

Dave Watts / Green ringtail possum (Pseudocheirus archeri) female with baby in pouch, looking down from tree, Queensland, Australia, November

Dave Watts / Satin Bowerbird (Ptilonorhynchus violaceus) male arranging blue plastic ornaments and feather at bower, Australian Capital Territory, Australia, September

Terry Whittaker / 2020VISION / RSPB Project Manager Dave Hedges at site. Wetland habitat ecosytem creation for the RSPB by Breheny Civil Engineers at Bowers Marsh RSPB Reserve, Thames Estuary, Essex, UK. November 2011. Model relea...

Dave Bevan / Robin (Erithacus rubecula) perched on snow-covered fence, feather fluffed up for warmth, Carmarthenshire, Wales, UK

Dave Bevan / Little owl (Athene noctua) perched on post at dusk, Carmarthenshire, Wales, UK, Captive

Dave Bevan / Common wasps (Vespula vulgaris) flying to and feeding on greengage fruit, UK

Dave Bevan / Long eared owl (Asio otus) perched on fence post, head cocked on one side, Wales, UK, captive

Dave Bevan / Long eared owl (Asio otus) perched on post, shaking wings in rain, Wales, UK, captive

Dave Bevan / Long eared owl (Asio otus) peering round trunk of larch tree, Wales, UK, captive

Dave Bevan / Robin (Erithacus rubecula) perched on snow covered Holly, Wales, UK

Dave Bevan / Blackbird (Turdus merula) juvenile feeding on Blackcurrant fruit (Ribes sp), UK

Dave Bevan / Robin (Erithacus rubecula) perched on Holly, UK

Dave Bevan / Dunnock / Hedge sparrow (Prunella modularis) perched on moss, UK

Dave Bevan / Flock of Oystercatchers in flight (Heamatopus ostralegus) North Wales, UK, February

Dave Watts / Red Squirrel {Sciurus vulgaris} climbing Scots pine tree, Formby, UK