New education resource – African Animal Maths.
Related species for the Three-spined stickleback (Gasterosteus aculeatus aculeatus)
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Emperor dragonfly (Anax imperator)
The emperor dragonfly (Anax imperator) is Britain's largest dragonfly; they are a spectacular sight with their broad wings and powerful…
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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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Common duckweed (Lemna gibba)
This duckweed is one of Britain's most common small water plants, which forms familiar green mats covering stagnant water bodies. It has a…
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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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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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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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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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Atlantic bluefin tuna (Thunnus thynnus)
One of the largest of the tunas, the Atlantic bluefin tuna (Thunnus thynnus) has been called a ‘pinnacle of fish evolution’, referring to…
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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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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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Sandwich tern (Sterna sandvicensis)
A medium-sized pale tern, the sandwich tern (Sterna sandvicensis) is considered to be one of six species of ‘crested’ tern, which, according…
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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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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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Rudd (Scardinius erythrophthalmus)
The rudd is often confused with the roach (Rutilus rutilus), as the two species are similar in appearance. In the rudd, the dorsal fin is…
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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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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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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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Risso's dolphin (Grampus griseus)
One of the most enigmatic cetaceans, this little-known dolphin has an unusual appearance. Unlike many other dolphins, Risso’s dolphin lacks…
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Wreckfish (Polyprion americanus)
The wreckfish (Polyprion americanus), named for the tendency of juveniles to associate with floating ocean wreckage, is a large bluish-grey…
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Short-beaked common dolphin (Delphinus delphis)
The short-beaked common dolphin (Delphinus delphis) is the commonest dolphin species, but exact numbers are unknown. It is easily identified…
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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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Common cuttlefish (Sepia officinalis)
The cephalopods (meaning 'head-footed'), a group of molluscs containing the octopuses, squid and cuttlefish, are probably the most…
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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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Bottlenose dolphin (Tursiops truncatus)
The bottlenose dolphin (Tursiops truncatus) is one of the most well-known species of dolphin. There appear to be two main varieties; a…
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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…
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Tope shark (Galeorhinus galeus)
The tope shark, the only member of the genus Galeorhinus, is a large, slender shark with a long snout. Its large mouth contains sharp…
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Goose barnacle (Lepas anatifera)
Goose barnacles gave rise to one of the strangest of animal beliefs. The heart-shaped shell, or ‘capitulum’, is a chalky-white in colour and…
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Porbeagle (Lamna nasus)
The porbeagle is a stout, heavy shark with a pointed, conical snout and a crescent-shaped caudal, or tail, fin. Its name is thought to…
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Black-legged kittiwake (Rissa tridactyla)
The black-legged kittiwake (Rissa tridactyla) is a small, graceful, cliff-nesting gull, named for its loud, nasal ‘kitti-wake’ call. As its…
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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…






































