Donkeys wallpapers

                The donkey or ass, (Equus africanus asinus), is a domesticated member of the Equidae or horse family. The wild ancestor of the donkey is the African wild ass, E. africanus. The donkey has been used as a working animal for at least 5000 years. There are more than 40 million donkeys in the world, mostly in underdeveloped countries, where they are used principally as draught or pack animals. Working donkeys are often associated with those living at or below subsistence levels. Small numbers of donkeys are kept for breeding or as pets in developed countries. Donkeys have a notorious reputation for stubbornness, but this has been attributed to a much stronger sense of "self preservation" than exhibited by horses. 

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Great hammerhead shark

               Great hammerhead (Sphyrna mokarran) is the largest species of hammerhead shark, family Sphyrnidae, attaining a maximum length of 6.1 m (20 ft). It is found in tropical and warm temperate waters worldwide, inhabiting coastal areas and the continental shelf. 
                An active predator with a varied diet, known prey of the great hammerhead include invertebrates such as crabs, lobsters, squid, and octopus, bony fishes such as tarpon, sardines, sea catfishes, toadfish, porgies, grunts, jacks, croakers, groupers, flatfishes, boxfishes, and porcupine fishes, and smaller sharks such as smoothhounds.
                 With its large size and cutting teeth, the great hammerhead is certainly capable of inflicting fatal injuries to a human and caution should be exercised around them. This species has a (possibly undeserved) reputation for aggression and being the most dangerous of the hammerhead sharks.

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Tuatara

                Tuatara is a reptile that is endemic to New Zealand which, though it resembles most lizards, is part of a distinct lineage, order Rhynchocephalia. The tuatara is considered the most unspecialised living amniote. The brain and mode of locomotion resemble those of amphibians and the heart is more primitive than that of any other reptile. Tuatara are greenish brown and gray, and measure up to 80 cm (31 in) from head to tail-tip and weigh up to 1.3 kg (2.9 lb) with a spiny crest along the back, especially pronounced in males. Their dentition, in which two rows of teeth in the upper jaw overlap one row on the lower jaw, is unique among living species. 
               Adult tuatara are terrestrial and nocturnal reptiles, though they will often bask in the sun to warm their bodies. Hatchlings hide under logs and stones, and are diurnal, likely because adults are cannibalistic. Tuatara thrive in temperatures much lower than those tolerated by most reptiles, and hibernate during winter. They remain active at temperatures as low as 5 °C (41 °F), while temperatures over 28 °C (82 °F) are generally fatal.

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Green Anaconda

                Green Anaconda (Eunectes murinus, water boa) is a nonvenomous boa species found in South America. It is the heaviest known snake species. The green anaconda is one of the world's longest snakes, reaching more than 6.6 m (22 ft) long. The longest (and heaviest) scientifically verified specimen was a female measuring 521 cm (17.09 ft) long and weighing 97.5 kg (215 lb). The color pattern consists of olive green background overlaid with black blotches along the length of the body.
                 The primarily nocturnal anaconda species tend to spend most of its life in or around water. Anacondas are also sometimes known as the water boa; they spend more time in water than any of the boas. Because of their large sizes, they seem rather slow and sluggish when traveling on land. They eat a wide variety of prey, almost anything they can manage to overpower, including fish, birds, a variety of mammals, and other reptiles.

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Ragdoll cats

               Ragdoll is a cat breed with blue eyes and a distinct colorpoint coat. It is a large and muscular semi-longhair cat with a soft and silky coat. Ragdoll it is best known for its docile and placid temperament and affectionate nature. Breed standards describe the Ragdoll as affectionate, intelligent, relaxed in temperament, gentle, and easy to handle. 
               The Ragdoll is one of the largest domesticated cat breeds with a sturdy body, large frame, and proportionate legs. A fully-grown female weighs from 8 to 15 pounds (3.6 to 6.8 kg). Males are substantially larger, ranging from 12 to 20 pounds (5.4 to 9.1 kg) or more. One study utilizing Swedish insurance data showed that of the common cat breeds, the Ragdoll and Siamese have the lowest survival rate, with 63% living to 10 years or more for the Ragdoll and 68% for the Siamese.

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Swallowtail butterfly

                 Swallowtail butterflies are large, colorful butterflies in the family Papilionidae, which includes over 550 species. Though the majority are tropical, members of the family occur on every continent except Antarctica. The family includes the largest butterflies in the world, the birdwing butterflies of the genus Ornithoptera. 
                 The genera of extant swallowtails are usually classified into three subfamilies, Baroniinae, Parnassiinae, and Papilioninae, the latter two being further divided into tribes. Parnassiinae had the following tribes: Allancastria, Archon, Bhutanitis, Hypermnestra, Luehdorfia, Parnassius, Sericinus. Papilioninae is divided in the following tribes: Atrophaneura, Battus, Cressida, Euryades, Eurytides, Graphium, Iphiclides, Lamproptera, Meandrusa, Mimoides, Ornithoptera, Papilio, Parides, Pharmacophagus, Protesilaus, Protographium, Teinopalpus, Trogonoptera, Troides. 

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Holstein cows

               Holsteins (Holstein-Friesians)are a breed of cattle known today as the world's highest-production dairy animals. Originating in Europe, Friesians were bred in what is now the Netherlands and more specifically in the two northern provinces of North Holland and Friesland, and northern Germany, more specifically what is now Schleswig-Holstein. The animals were the regional cattle of the Frisians and the Saxons. 
               Holsteins are large, black-and-white marked animals that vary from mostly black to mostly white, or they can also be red and white. A mature Holstein cow typically weighs 580 kg (1280 pounds), and stands 147 cm (58 inches) tall at the shoulder. Holstein heifers should be bred by 15 months of age, when they weigh over 360 kg (794 pounds). 

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Abyssinian cat

               Abyssinian cats are domesticated cats with a distinctive ticked coat. There are many stories about its origins, often revolving around Ethiopia, but the actual origins are uncertain.  
               The Abyssinian cat has alert, relatively large pointed ears. The head is broad and moderately wedge shaped. Its eyes are almond shaped and colors include gold, green, hazel or copper. The paws are small and oval. The legs are slender in proportion to the body, with a fine bone structure. Abyssinians are extroverted, extremely active, playful, wilful and intelligent. They are popular among breeders and owners, and can be very successful show cats.

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Labrador Retriever

                 Labrador Retriever is one of several kinds of retriever, a type of gun dog. Even-tempered and well-behaved around young children and the elderly, Labradors are athletic and playful, and are the most popular breed of dog by registered ownership in Australia, Canada, New Zealand, the United Kingdom, and the United States.
                 The modern Labrador's ancestors originated on the island of Newfoundland, now part of the province of Newfoundland and Labrador, Canada. Labradors are relatively large, with males typically weighing 29 to 41 kg (64 to 90 lb) and females 25 to 32 kg (55 to 71 lb). Labrador Retrievers are registered in three colours: black, yellow (white or cream to "fox-red"), and chocolate (medium to dark brown).

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Swallow

                The swallows are a group of passerine birds in the family Hirundinidae which are characterised by their adaptation to aerial feeding. The swallows have a cosmopolitan distribution across the world and breed on all the continents except Antarctica. 
                Hirundinidae are divided in: Psalidoprocne, Pseudhirundo, Cheramoeca, Phedina, Riparia, Tachycineta, Progne, Notiochelidon, Haplochelidon, Atticora, Neochelidon, Stelgidopteryx, Alopochelidon, Hirundo, Ptyonoprogne, Delichon, Cecropis, Petrochelidon. The most common species are tree swallow and barn swallow. Swallows are tolerated by humans because of their beneficial role as insect-eaters, and some species have readily adapted to nesting in and around human habitation. 

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Wild Duck

             Wild Duck (Mallard, Anas platyrhynchos) is a dabbling duck which breeds throughout the temperate and subtropical Americas, Europe, Asia, and North Africa, and has been introduced to New Zealand and Australia. This duck belongs to the subfamily Anatinae of the waterfowl family Anatidae. 
             Wild Duck is a medium-sized waterfowl species although is often slightly heavier than most other dabbling ducks. It is 50–65 cm (20–26 in) long (of which the body makes up around two-thirds), has a wingspan of 81–98 cm (32–39 in), and weighs 0.72–1.58 kg (1.6–3.5 lb). The male birds (drakes) have a glossy green head and are grey on wings and belly, while the females have mainly brown-speckled plumage.

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Ranitomeya amazonica

             Ranitomeya amazonica is a poison dart frog in the genus Ranitomeya which lives in the Amazon jungle. The frog has been encountered in the Alpahuayo Mishana National Reserve in Peru. 
             Ranitomeya amazonica is 16–19 mm long with smooth, black skin. The torso is laterally striped orange or red while the legs and arms feature a mesh of blue, grey or green on black. 
             It was first described by Rainer Schulte in 1999 as Dendrobates amazonicus when he separated it from Dendrobates ventrimaculatus. The validity of the species is still being discussed among scientists.

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Merino sheep

             Merino is an economically influential breed of sheep prized for its wool. Merinos are regarded as having some of the finest and softest wool of any sheep.  The main types of merino are: Booroola Merino, Delaine Merino, Fonthill Merino, German Mutton Merino, Medium-Wool Merino, Merinolandschaf, Poll Merino, South African Merino, South African Mutton Merino, Strong Wool Merino.
             Merino wool is finely crimped and soft. Staples are commonly 65–100 mm (2.6–3.9 in) long. A Saxon Merino produces 3–6 kg (6.6–13 lb) of greasy wool a year, while a good quality Peppin Merino ram produces up to 18 kg (40 lb). Merino wool is generally less than 24 micron (µm) in diameter. Basic Merino types include: strong (broad) wool 23–24.5 µm, medium wool is 19.6–22.9 µm, fine 18.6–19.5 µm, superfine 15–18.5 µm and ultra fine 11.5–15 µm.

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