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The Living Encyclopedia
Explore our comprehensive database of reptiles, amphibians, fish, and invertebrates. Discover detailed care guides, morph varieties, and community setups.
mammal
Armadillo
Cingulata
Armadillos are placental mammals in the order Cingulata. They form part of the superorder Xenarthra, along with the anteaters and sloths. Twenty-one extant species of armadillo have been described, some of which are distinguished by the number of bands on their armor. All species are native to the Americas, where they inhabit a variety of environments.
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bird
Wood Duck
Aix sponsa
The wood duck or Carolina duck is a partially migratory species of perching duck found in North America. The male is one of the most colorful North American waterfowls.
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bird
Mandarin Duck
Aix galericulata
The mandarin duck is a perching duck species native to the East Palearctic. It is sexually dimorphic; the males are elaborately coloured, while the females have more subdued colours. It is a medium-sized duck, at 41–49 cm (16–19 in) long with a 65–75 cm (26–30 in) wingspan. It is closely related to the North American wood duck, the only other member of the genus Aix. 'Aix' is an Ancient Greek word which was used by Aristotle to refer to an unknown diving bird, and 'galericulata' is the Latin for a wig, derived from galerum, a cap or bonnet. Outside of its native range, the mandarin duck has a large introduced population in the British Isles and Western Europe, with additional smaller introductions in North America.
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bird
Call Duck
Anas platyrhynchos domesticus
The Call is a historic breed of small domestic duck. It is believed to have originated in the Netherlands, where the earliest descriptions and depictions of it date from the seventeenth century. It is similar in appearance to some other breeds of duck, but is much smaller, with a round head and very short bill. Ducks – but not drakes – are very loquacious and noisy, with a piercing high-pitched call that can be heard from far away and from which the name derives.
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bird
Muscovy Duck
Cairina moschata
The Muscovy duck is a shelduck native to the Americas, from the Lower Rio Grande Valley of Texas and Mexico south to Argentina and Uruguay. The species has been domesticated, and feral Muscovy ducks can be found locally in New Zealand, Australia, the United States, and in Central and Eastern Europe.
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bird
Northern Pintail
Anas acuta
The pintail or northern pintail is a duck species with wide geographic distribution that breeds in the northern areas of Europe and across the Palearctic and North America. It is migratory and winters south of its breeding range as far as the equator. Unusually for a bird with such a large range, it has no geographical subspecies, although the possibly conspecific duck Eaton's pintail is considered to be a separate species.
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bird
Green-Winged Teal
Anas crecca
The green-winged teal or American teal is a common and widespread duck that breeds in the northern areas of North America except on the Aleutian Islands. It was considered conspecific with the Eurasian teal for some time, but the two have since been split into separate species. The American Ornithological Society continues to debate this determination; however, nearly all other authorities consider it distinct based on behavioral, morphological, and molecular evidence. The scientific name is from Latin Anas, "duck" and carolinensis, "of Carolina".
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bird
Blue-Winged Teal
Spatula discors
The blue-winged teal is a species of bird in the duck, goose, and swan family Anatidae. One of the smaller members of the dabbling duck group, it occurs in North America, where it breeds from southern Alaska to Nova Scotia, and south to northern Texas. It winters along the Pacific and Atlantic coasts and south into the Caribbean islands and Central America.
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bird
Cinnamon Teal
Spatula cyanoptera
The cinnamon teal is a species of duck found in western North and South America. It is a small dabbling duck, with bright reddish plumage on the male and duller brown plumage on the female. It lives in marshes and ponds, and feeds mostly on plants. The cinnamon teal duck is closely related to the north american dabbling duck.(Wilson et al.)
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bird
Redhead Duck
Aythya americana
The redhead is a medium-sized diving duck. The scientific name is derived from Greek aithuia, an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin americana, of America. The redhead is 40–56 cm (16–22 in) long with an 74–84 cm (29–33 in) wingspan; the weight ranges from 1,030–1,080 g (36–38 oz), with males weighing an average of 1,080 g (38 oz) and females an average of 1,030 g (36 oz). It belongs to the genus Aythya, together with 11 other described species. The redhead and the common pochard form a sister group which together is sister to the canvasback. This waterfowl is easily distinguished from most other ducks by the male's copper colored head and pale blue bill during the breeding season; from its close relative canvasback it is distinguished by the more rounded head, shorter bill, and yellow, not red, eye. The Eurasian common pochard is even more similar, but very rarely overlaps in range; it also differs in having a red eye, and a more acute, less rounded head shape.
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bird
Canvasback
Aythya valisineria
The canvasback is a species of diving duck, the largest found in North America.
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bird
Ring-Necked Duck
Aythya collaris
The ring-necked duck is a diving duck from North America commonly found in freshwater ponds and lakes. The scientific name is derived from Greek aithuia, an unidentified seabird mentioned by authors including Hesychius and Aristotle, and Latin collaris, "of the neck" from collum, "neck".
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bird
Lesser Scaup
Aythya affinis
The lesser scaup is a small North American diving duck that migrates south as far as Central America in winter. It is colloquially known as the little bluebill or broadbill because of its distinctive blue bill. The origin of the name scaup may stem from the bird's preference for feeding on scalp—the Scottish word for clams, oysters, and mussels; however, some credit it to the female's discordant scaup call as the name's source. It is apparently a very close relative of the Holarctic greater scaup or "bluebill", with which it forms a superspecies. The scientific name is derived from Ancient Greek and Latin, with aithuia being an Ancient Greek term for an unidentified seabird, used by Hesychius and Aristotle, among other authors, and affinis, Latin for "related to", from the lesser scaup's resemblance to the greater scaup.
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bird
Bufflehead
Bucephala albeola
The bufflehead is a small sea duck of the genus Bucephala, the goldeneyes. It breeds in Alaska and Canada and migrates in winter to southern North America. This species was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae as Anas albeola.
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bird
Common Goldeneye
Bucephala clangula
The common goldeneye or simply goldeneye is a medium-sized sea duck of the genus Bucephala, the goldeneyes. Its closest relative is the similar Barrow's goldeneye. The genus name is derived from the Ancient Greek boukephalos, a reference to the bulbous head shape of the bufflehead. The species name is derived from the Latin clangere.
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bird
Hooded Merganser
Lophodytes cucullatus
The hooded merganser is a species of fish-eating duck in the subfamily Anatinae. It is the only extant species in the genus Lophodytes. The genus name derives from the Greek language: lophos meaning 'crest', and dutes meaning 'diver'. The bird is striking in appearance; both sexes have crests that they can raise or lower, and the breeding plumage of the male is handsomely patterned and coloured. The hooded merganser has a sawbill but is not classified as a typical merganser.
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bird
Ruddy Duck
Oxyura jamaicensis
The ruddy duck is a species of duck in the family Anatidae. The ruddy duck is one of six species within the stiff-tailed ducks. Stiff-tailed ducks occupy heavily vegetated habitats in North and South America as well as the British Isles, France, and Spain. In the 1940s, the ruddy duck was introduced to the United Kingdom, where it has since established a growing population. Outside the Americas, the ruddy duck is considered a highly invasive species, prompting many countries to initiate culling projects to eradicate it from the native ecosystem.
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bird
Black Swan
Cygnus atratus
The black swan is a large waterbird, a species of swan which breeds mainly in the southeast and southwest regions of Australia. Within Australia, the black swan is nomadic, with erratic migration patterns dependent on climatic conditions. It is a large bird with black plumage and a red bill. It is a monogamous breeder, with both partners sharing incubation and cygnet-rearing duties.
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bird
Black-Necked Swan
Cygnus melancoryphus
The black-necked swan is a species of waterfowl in the tribe Cygnini of the subfamily Anserinae. It is found in Argentina, Brazil, Chile, Uruguay, and the Falkland Islands.
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bird
Trumpeter Swan
Cygnus buccinator
The trumpeter swan, or simply the trumpeter, is a species of swan found in North America. The heaviest living bird native to North America, it is also the largest extant species of waterfowl, with a wingspan of 185 to 304.8 cm. It is the American counterpart and a close relative of the whooper swan of Eurasia and has even been considered the same species by some authorities. By 1933, fewer than 70 wild individuals were known to exist; extinction seemed imminent until aerial surveys discovered a Pacific population of several thousand trumpeter swans around Alaska's Copper River. Careful reintroductions by wildlife agencies and the Trumpeter Swan Society gradually restored the North American wild population to over 46,000 birds by 2010.
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