Female and juvenile two-coloured wolf spiders are easily distinguished from other wolf spiders by their dramatic colouring.
Related species for the Great auk (Pinguinus impennis)
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Atlantic mackerel (Scomber scombrus)
The Atlantic mackerel (Scomber scombrus) is a beautifully streamlined, fast-swimming fish. It has silver underparts and metallic green…
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Holly-leaved naiad (Najas marina)
The holly-leaved naiad (Najas marina) is an aquatic plant that has tough narrow leaves on forked, brittle stems. Both the leaves and the…
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Gannet (Morus bassanus)
The gannet (Morus bassanus) is a magnificent large seabird, with long narrow wings, a long neck, and instantly recognisable plumage…
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Common seal (Phoca vitulina)
Also known as the harbour seal, the common seal is the smaller of the two breeding seals in Great Britain. When hauled out it often adopts a…
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White-beaked dolphin (Lagenorhynchus albirostris)
Despite the common and Latin names (albirostris means 'white beak'), the short, stocky beak of the white-beaked dolphin is not always white…
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Puffin (Fratercula arctica)
The puffin (Fratercula arctica) is one of the UK's most well-loved and easily recognised birds. It has a comical appearance…
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Razorbill (Alca torda)
The handsome razorbill (Alca torda) has a characteristic deep, flattened, wedge-shaped bill, which is black in colour with a white…
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Common snipe (Gallinago gallinago)
The common snipe is a superbly camouflaged bird, most often seen fleeing erratically after being flushed from its concealed location. This…
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Sei whale (Balaenoptera borealis)
The sei whale is smaller in size than the fin whale (Balaenoptera physalus), and can be distinguished from this similar species because it…
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Mallard (Anas platyrhynchos)
The familiar mallard (Anas platyrhynchos) is the most numerous duck in Britain, and is the ancestor of the domestic duck. Both male and…
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Common minke whale (Balaenoptera acutorostrata)
The smallest of the rorqual whales, the common minke whale (Balaenoptera acutorostrata) is also the most abundant. The common minke whale is…
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Grey seal (eastern Atlantic population) (Halichoerus grypus)
The grey seal (Halichoerus grypus) is the larger of Britain's two species of breeding seal. The coat colour varies from grey to brown…
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Long-finned pilot whale (Globicephala melas)
The long-finned pilot whale is not actually a whale, but a dolphin. Along with the related short-finned pilot whale, this species was once…
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Cormorant (Phalacrocorax carbo)
The cormorant (Phalacrocorax carbo), a large water bird, has a long neck, giving it something of a primitive, reptilian appearance…
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Atlantic herring (Clupea harengus)
Many people will be familiar with the Atlantic herring (Clupea harengus) as, for many years, it has been a staple of the fishmonger's…
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Sea lamprey (Petromyzon marinus)
Lampreys are some of the most primitive vertebrates alive today, they are known as cyclostomes, which means 'round mouths' and refers to the…
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Great pond snail (Lymnaea stagnalis)
The aptly named great pond snail (Lymnaea stagnalis) is the largest pond snail in Britain. The great pond snail has a shiny…
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Great black-backed gull (Larus marinus)
The largest of the gulls, the great black-backed gull (Larus marinus) is a dominating predator that has been described as a “merciless…
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Harbour porpoise (Phocoena phocoena)
The harbour porpoise is the most commonly seen porpoise, and is the most widely distributed of all cetaceans (whales and dolphins) in…
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Raven (Corvus corax)
The raven (Corvus corax) is a magnificent bird; bigger than a buzzard, it is the largest passerine (perching) bird in Europe, and is deeply…
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Herring gull (Larus argentatus)
The quintessential ‘seagull’, the herring gull (Larus argentatus) is perhaps the most familiar seabird in the Northern Hemisphere. Yet…
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Humpback whale (Megaptera novaeangliae)
The magnificent humpback whale (Megaptera novaeangliae) is renowned for its impressive leaping displays and for the mysterious 'singing' of…
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Ruddy turnstone (Arenaria interpres)
The ruddy turnstone is a small, stocky, brightly-patterned shorebird, named for its habit of turning over objects such as stones, shells and…
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Guillemot (Uria aalge)
The guillemot (Uria aalge) is the commonest member of the auk family in the British Isles. The head as well as the upperparts are dark…
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Snow bunting (Plectrophenax nivalis)
The aptly-named snow bunting ((Plectrophenax nivalis) is a hardy, medium-sized songbird of the high Arctic and snowy winter fields…
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Teal (Anas crecca)
The teal (Anas crecca) is one of the smallest wild ducks in the UK. The drake (male) in breeding plumage is also one of the most handsome of…
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Arctic tern (Sterna paradisaea)
The Arctic tern (Sterna paradisaea) is a long-distance migrant, making a staggering annual round-trip from its Arctic or northern temperate…
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Atlantic white-sided dolphin (Lagenorhynchus acutus)
The Atlantic white-sided dolphin is a large, robust species, which is easily recognised by the obvious yellow patch towards the rear of the…
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Northern wheatear (Oenanthe oenanthe)
A small, mainly ground-dwelling bird, the northern wheatear (Oenanthe oenanthe) is a rather attractive species with marked differences in…
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Orca (Orcinus orca)
Also known as the killer whale, the orca (Orcinus orca) is the largest member of the dolphin family, and one of the most distinctive of all…
