Female and juvenile two-coloured wolf spiders are easily distinguished from other wolf spiders by their dramatic colouring.
Related species for the Shortspine thornyhead (Sebastolobus alascanus)
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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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Sago pondweed (Stuckenia pectinata)
Information on the sago pondweed (Stuckenia pectinata) is currently being researched and written and will appear here shortly.…
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Four-spotted chaser (Libellula quadrimaculata)
The four-spotted chaser (Libellula quadrimaculata) gets its name form the four dark spots present at the midpoint of the front of each…
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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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Fin whale (Balaenoptera physalus)
Fin whales are the fastest of all cetaceans, reaching speeds of 37 kilometres per hour and known to completely clear the water. This whale…
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Spotted seal (Phoca largha)
The spotted seal (Phoca largha) varies in colouration from very light to very dark, but is generally pale on the underside, with darker…
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Sea otter (Enhydra lutris)
The sea otter, the smallest marine mammal in the world, is well adapted for its predominately aquatic lifestyle, possessing a strong…
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Moose (Alces americanus)
Together with its close relative the Eurasian elk (Alces alces), the moose (Alces americanus) is the largest living deer species, and is…
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Blue whale (Balaenoptera musculus)
The blue whale (Balaenoptera musculus) is the largest animal to have ever lived, being almost as big as a Boeing 737 and even larger than…
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Brown bear (Ursus arctos)
One of the largest carnivores on Earth, the brown bear (Ursus arctos) is perhaps the most archetypal of all bear species; indeed the genus…
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Grey wolf (Canis lupus)
The world’s largest wild canid, the iconic grey wolf (Canis lupus) has been a source of both fear and respect, inspiring a rich cultural…
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Muskox (Ovibos moschatus)
A massive, stocky bovid, superficially resembling the American bison in appearance, the muskox has a large body, short, stout legs, a short…
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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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Arctic fox (Vulpes lagopus)
The Arctic fox (Vulpes lagopus) is superbly adapted for life at sub-zero temperatures. While this species is best known for its pristine…
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Pike (Esox lucius)
The pike (Esox lucius) is probably the coarse anglers’ most sought-after fish. It is predatory both in nature and appearance. The fish has a…
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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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Harp seal (Pagophilus groenlandicus)
The adult harp seal (Pagophilus groenlandicus) is distinguished by the black markings on the upperside of its body, which create a harp or…
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Ringed seal (Pusa hispida)
The smallest of all living seal species, growing to a maximum length of just over 1.5 metres, the ringed seal (Pusa hispida) is named for…
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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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Wolverine (Gulo gulo)
The elusive wolverine (Gulo gulo) has a fearsome reputation - it is the largest member of the weasel family. The remoteness and voracious…
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Weasel (Mustela nivalis)
Britain's smallest native carnivore, the weasel (Mustela nivalis) has a long slender body, and a short tail. The fur is ginger to a rich…
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Walrus (Odobenus rosmarus)
One of the largest and most distinctive of all pinnipeds, the walrus (Odobenus rosmarus) is renowned for its enormous tusks, which can reach…
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House mouse (Mus musculus)
The house mouse (Mus musculus) is one of the most widely distributed and successful mammals in the world. It has dull greyish-brown fur…
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Sockeye salmon (Oncorhynchus nerka)
Information on the sockeye salmon (Oncorhynchus nerka) is being researched and written and will appear here shortly.…
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Reindeer (Rangifer tarandus)
Known as caribou in North America, the reindeer (Rangifer tarandus) is a charismatic and hardy species that inhabits the northern reaches of…
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Common green darner (Anax junius)
One of North America’s most common and widespread dragonflies, the common green darner (Anax junius) is a large insect with a bright green…
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Polar bear (Ursus maritimus)
The polar bear (Ursus maritimus) is the largest living land carnivore, with adult males growing up to 2.6 metres in length. The most…
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Stoat (Mustela erminea)
Stoats (Mustela erminea) are elusive predators, with long, slender bodies and short legs. The pelage is reddish to ginger in colour…
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Sperm whale (Physeter macrocephalus)
The sperm whale (Physeter macrocephalus) is the largest of the toothed whales, with males growing up to 20 metres in length. The sperm whale…
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Steller's sea lion (Eumetopias jubatus)
Steller's sea lion is the largest of the eared seals (members of the family Otariidae), a group that includes fur seals and sea lions. The…
