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Canada Goose (Branta canadensis) introduced species, adult, landing on lake, Gloucestershire, England, summer





Small Asian Mongoose (Herpestes javanicus) introduced species, adult, standing on hotel lawn, St. Lucia, Windward Islands, Le...
Small Asian Mongoose (Herpestes javanicus) introduced species, adult, standing on hotel lawn, St. Lucia, Windward Islands, Lesser Antilles, December





Eastern Grey Squirrel (Sciurus carolinensis) introduced species, young, feeding, sitting on branch, Norwich, Norfolk, England...
Eastern Grey Squirrel (Sciurus carolinensis) introduced species, young, feeding, sitting on branch, Norwich, Norfolk, England, september





Canada Goose (Branta canadensis) introduced species, flock, on grazing marsh habitat, with cattle herd in distance, Exe Estua...
Canada Goose (Branta canadensis) introduced species, flock, on grazing marsh habitat, with cattle herd in distance, Exe Estuary RSPB Reserve, Devon, England, september





Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, running across grass, Oxfordshire, England





Japanese Rose (Rosa rugosa) introduced species, close-up of flower, growing on wasteground, Suffolk, England, august





Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, feeding, sitting on tree trunk in city parkland, Gree...
Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, feeding, sitting on tree trunk in city parkland, Greenwich Park, Greenwich, London, England, april





Yellow Skunk Cabbage (Lysichiton americanum) introduced naturalized species, with Marsh Marigold (Caltha palustris) flowering...
Yellow Skunk Cabbage (Lysichiton americanum) introduced naturalized species, with Marsh Marigold (Caltha palustris) flowering, growing along stream habitat, Powys, Wales, April





Chinese Water Deer (Hydropotes inermis) introduced species, adult male, running, Norfolk, England





Dojo Loach (Misgurnus anguillicaudatus) introduced species, adult, close-up of head, Italy, september





Thorn Apple (Datura stramonium) introduced species, close-up of flower and developing fruit, growing in stubble field, Northe...
Thorn Apple (Datura stramonium) introduced species, close-up of flower and developing fruit, growing in stubble field, Northern Spain, september





Harlequin Ladybird (Harmonia axyridis) introduced species, black form, adult, on cotoneaster leaf in garden, Leicestershire, ...
Harlequin Ladybird (Harmonia axyridis) introduced species, black form, adult, on cotoneaster leaf in garden, Leicestershire, England, autumn





Rose-ringed Parakeet (Psittacula krameri) introduced species, adult female, at nesthole in tree trunk, England, april





Master of Hunt and wife with local landowner, waiting on horseback during harrier hunt, hunting for hares or foxes (introduce...
Master of Hunt and wife with local landowner, waiting on horseback during harrier hunt, hunting for hares or foxes (introduced species), Starborough Hunt, New Zealand





Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, feeding on Common Beech (Fagus sylvatica) seeds, sitt...
Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, feeding on Common Beech (Fagus sylvatica) seeds, sitting on ground in city park, Sheffield, South Yorkshire, England, october





A small group of reindeer Rangifer tarandus in Jason Harbor, Cumberland Bay, South Georgia MORE INFO A few reindeer from Norw...
A small group of reindeer Rangifer tarandus in Jason Harbor, Cumberland Bay, South Georgia MORE INFO A few reindeer from Norway were introduced to the South Atlantic island of South Georgia in the beginning of the 20th century Today, there are two disti





Chinese Muntjac (Muntiacus reevesi) introduced species, adult male, standing on ride path in fenland habitat, Woodwalton Fen,...
Chinese Muntjac (Muntiacus reevesi) introduced species, adult male, standing on ride path in fenland habitat, Woodwalton Fen, Cambridgeshire, England, july





Common Laburnum (Laburnum anagyroides) introduced species, habit, flowering in wasteground at edge of railway line, Bacton, S...
Common Laburnum (Laburnum anagyroides) introduced species, habit, flowering in wasteground at edge of railway line, Bacton, Suffolk, England, may





hawaiian or nene goose group branta sandvicensis island of maui, hawaii, usa endangered species





Few-flowered Garlic (Allium paradoxum) introduced species, flowers and forming seed bulbils, Norfolk, England, april





Canada Goose (Branta canadensis) introduced species, flock, resting on jetty at edge of lake, Bowness on Windermere, Lake Win...
Canada Goose (Branta canadensis) introduced species, flock, resting on jetty at edge of lake, Bowness on Windermere, Lake Windermere, Lake District, Cumbria, England, march





Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, feeding on acorn, Minsmere RSPB Reserve, Suffolk, Eng...
Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, feeding on acorn, Minsmere RSPB Reserve, Suffolk, England, october





Red Fox Vulpes vulpes -formerly Vulpes fulva - New York - USA - same species as European red fox - some say was originally in...
Red Fox Vulpes vulpes -formerly Vulpes fulva - New York - USA - same species as European red fox - some say was originally introduced from Europe to North America - widespread in North America - omnivore





Brown Tree Snake (Boiga irregularis) species has been introduced to Guam and has become a pest, Northern Territory, Australia





Lady Amherst's Pheasant (Chrysolophus amherstiae) introduced species, adult male, Norfolk, England, january





Rose-ringed Parakeet (Psittacula krameri) introduced species, adult female, feeding on seeds in tree, Richmond Park, London, ...
Rose-ringed Parakeet (Psittacula krameri) introduced species, adult female, feeding on seeds in tree, Richmond Park, London, England, october





chinese mitten crab, eriocheir sinensis, burrows in banks of river thames, london, invading species.





Common Pheasant (Phasianus colchicus) adult male, displaying in meadow, Suffolk, England, may





Lady Amherst's Pheasant (Chrysolophus amherstiae) introduced species, adult male, close-up of head, Norfolk, England, februar...
Lady Amherst's Pheasant (Chrysolophus amherstiae) introduced species, adult male, close-up of head, Norfolk, England, february





Bladderdock (Rumex vesicarius) introduced species, flowering, Sturt N.P., New South Wales, Australia





Common Pheasant (Phasianus colchicus) adult male, close-up of head and chest, foraging on frosty ground, Oxfordshire, England...
Common Pheasant (Phasianus colchicus) adult male, close-up of head and chest, foraging on frosty ground, Oxfordshire, England, january





Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, close-up of head, feeding, with Feral Pigeon (Columba...
Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, close-up of head, feeding, with Feral Pigeon (Columba livia) flock on ground in city park, Sheffield, South Yorkshire, England, october





Sika Deer (Cervus nippon) introduced species, doe, drinking, standing at edge of water, England, september





Chinese Mitten Crab (Eriocheir sinensis) introduced species, adult, sheltering in broken bottle, River Thames, London, Englan...
Chinese Mitten Crab (Eriocheir sinensis) introduced species, adult, sheltering in broken bottle, River Thames, London, England





Red Valerian (Centranthus ruber) introduced naturalised species, flowering, growing at base of old flint wall, Norfolk, Engla...
Red Valerian (Centranthus ruber) introduced naturalised species, flowering, growing at base of old flint wall, Norfolk, England, june





Brown Rat (Rattus norvegicus) adult, feeding on grain spilt from sack, England, august (captive)





Common Pheasant (Phasianus colchicus) adult male, close-up of head, Norfolk, England, april





Common Pheasant (Phasianus colchicus) dark form, adult male, close-up of head and chest, calling, standing amongst grass, Ber...
Common Pheasant (Phasianus colchicus) dark form, adult male, close-up of head and chest, calling, standing amongst grass, Berwickshire, Scottish Borders, Scotland, may





Tumbleweed (Salsola tragus) introduced species, dried stems caught on fence, Southern California, U.S.A.





Canada Goose (Branta canadensis) introduced species, gosling, sitting on grass amongst daisies, London, England, may





Cane Toad (Bufo marinus) introduced species, now a national pest, Northern Territory, Australia, December





Giant Panda (Ailuropoda melanoleuca) Gongzhu is successfully re-introduced to one of her nine week old twin cubs which she in...
Giant Panda (Ailuropoda melanoleuca) Gongzhu is successfully re-introduced to one of her nine week old twin cubs which she initially rejected, China Conservation and Research Center for the Giant Panda, Wolong Nature Reserve, China





Sika Deer (Cervus nippon) introduced species, hind, in evening sunlight of woodland clearing, Arne RSPB Reserve, Dorset, Engl...
Sika Deer (Cervus nippon) introduced species, hind, in evening sunlight of woodland clearing, Arne RSPB Reserve, Dorset, England, autumn





Chinese Water Deer (Hydropotes inermis) introduced species, adult male, running, Norfolk, England





Common Wall Lizard (Podarcis muralis) introduced species, adult male, basking on rock, Dorset, England, may





Common Mynah (Acridotheres tristis) introduced species, adult, standing on short grass, Queensland, Australia





Common Morning Glory (Ipomoea purpurea) introduced species, flowering, growing on wasteground, Biertan, Transylvania, Romania...
Common Morning Glory (Ipomoea purpurea) introduced species, flowering, growing on wasteground, Biertan, Transylvania, Romania, september





Bronze Pirri-pirri Bur (Acaena anserinifolia) introduced invasive weed species, fruits, Lindisfarne, Northumberland, England,...
Bronze Pirri-pirri Bur (Acaena anserinifolia) introduced invasive weed species, fruits, Lindisfarne, Northumberland, England, july





Brown Rat (Rattus norvegicus) at waste water outlet, common pest species native to Europe, introduced worldwide





American River Crayfish (Orconectes limosus) introduced species, adult male, resting on rocks, Italy, april





Common Pheasant (Phasianus colchicus) dark form, adult male, close-up of head and chest, standing amongst grass, Berwickshire...
Common Pheasant (Phasianus colchicus) dark form, adult male, close-up of head and chest, standing amongst grass, Berwickshire, Scottish Borders, Scotland, may





Chinese Muntjac (Muntiacus reevesi) introduced species, adult female, walking at woodland edge, Norfolk, England, july





Egyptian Goose (Alopochen aegyptiacus) introduced species, adult, close-up of head, in city parkland, London, England, may





Canada Goose (Branta canadensis) introduced species, adult, close-up of wing feathers, Warwickshire, England, summer





Grand Canyon, Arizona, USA.A humpback chub swims in milky waters of the Little Colorado River.





Marshland habitat with Canada Goose (Branta canadensis) flock, Bowling Green Marsh RSPB Reserve, Exe River Estuary, Devon, En...
Marshland habitat with Canada Goose (Branta canadensis) flock, Bowling Green Marsh RSPB Reserve, Exe River Estuary, Devon, England, august





Canada Goose (Branta canadensis) introduced species, two adults, in flight, silhouetted at sunrise, Elmley Marshes RSPB Reser...
Canada Goose (Branta canadensis) introduced species, two adults, in flight, silhouetted at sunrise, Elmley Marshes RSPB Reserve, North Kent Marshes, Isle of Sheppey, Kent, England, april





False Acacia (Robinia pseudoacacia) introduced naturalised species, close-up of flowers and leaves, Italy, april





Hottentot Fig (Carpobrotus edulis) introduced species, flowering, naturalised on rocky shoreline, North Cornwall, England, ma...
Hottentot Fig (Carpobrotus edulis) introduced species, flowering, naturalised on rocky shoreline, North Cornwall, England, may





Canada Goose (Branta canadensis) introduced species, adult, walking on grass, Warwickshire, England, march





Eastern Grey Squirrel (Sciurus carolinensis) introduced species, adult, sitting on garden shed, Oxfordshire, England, july





Mandarin Duck (Aix galericulata) introduced species, adult male, swimming, close-up of head, Norfolk, England, february





Common Pheasant (Phasianus colchicus) adult male, standing in ploughed field, Suffolk, England, may





Yellow Monkeyflower (Mimulus guttatus) introduced species, close-up of flowers, England, june





ITALY, Po Delta. Goro, vicinity Ferrara. Harvesting mussels. First introduced in 1986. . An Asiatic species of mussel (Tapes ...
ITALY, Po Delta. Goro, vicinity Ferrara. Harvesting mussels. First introduced in 1986. . An Asiatic species of mussel (Tapes semidecussatus) has become the main source of income for many local people.





Mandarin Duck (Aix galericulata) introduced species, adult male, swimming, Midlands, England, april





Canada Goose (Branta canadensis) introduced species, four goslings, following parent swimming on lake, Leicestershire, Englan...
Canada Goose (Branta canadensis) introduced species, four goslings, following parent swimming on lake, Leicestershire, England, may





THe marsh frog in a escaped garden alien which was introduced to Kent in 1935 THis large frog likes to live within one metre ...
THe marsh frog in a escaped garden alien which was introduced to Kent in 1935 THis large frog likes to live within one metre of water British wildlife centre, Surrey, England, UK





American Mink (Mustela vison) introduced species, adult, close-up of head, England, July (captive)





Common Pheasant (Phasianus colchicus) adult pair, standing in ploughed field, Suffolk, England, may





Rosemary Beetle (Chrysolina americana) introduced species, adult, on autumn leaf in garden, Belvedere, Bexley, Kent, England,...
Rosemary Beetle (Chrysolina americana) introduced species, adult, on autumn leaf in garden, Belvedere, Bexley, Kent, England, September





Alexanders (Smyrnium olusatrum) introduced naturalised species, flowering, growing in damp woodland habitat, Norfolk, England...
Alexanders (Smyrnium olusatrum) introduced naturalised species, flowering, growing in damp woodland habitat, Norfolk, England, april





Canada Goose (Branta canadensis) introduced species, adult, calling, standing amongst Marsh Marigold (Caltha palustris), Suff...
Canada Goose (Branta canadensis) introduced species, adult, calling, standing amongst Marsh Marigold (Caltha palustris), Suffolk, England, may





Canada Goose (Branta canadensis) introduced species, goslings, sleeping huddled together, London, England, may





Fossils of extinct ammonite cephalopods: extinct species of Nautilus bidorsatus, and the Ceratites nodosus. The nautilus has ...
Fossils of extinct ammonite cephalopods: extinct species of Nautilus bidorsatus, and the Ceratites nodosus. The nautilus has changed little over the past 500 million years. Handcoloured lithograph by an unknown artist from Dr. F.A. Schmidt's "Petrefactenbuch," published in Stuttgart, Germany, 1855 by Verlag von Krais & Hoffmann. Dr. Schmidt's "Book of Petrification" introduced fossils and palaeontology to both the specialist and general reader.





Black Swan (Cygnus atratus) introduced species, adult, feeding on plants, close-up of head and neck, Norfolk, England, winter





Common Pheasant (Phasianus colchicus) adult male, calling, displaying in dew covered grass, North Kent Marshes, Isle of Shepp...
Common Pheasant (Phasianus colchicus) adult male, calling, displaying in dew covered grass, North Kent Marshes, Isle of Sheppey, Kent, England, april

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