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Friday, 4 May 2012
Monday, 13 February 2012
Animals
SQUIRELL
Squirrels belong to a large family of small or medium-sized rodents called the Sciuridae. The family includes tree squirrels, ground squirrels, chipmunks,marmots (including woodchucks), flying squirrels, and prairie dogs. Squirrels are indigenous to the Americas, Eurasia, and Africa and have been introducedto Australia. The earliest known squirrels date from the Eocene and are most closely related to the mountain beaver and to the dormouse among living species.
CAMEL
A camel is an even-toed ungulate within the genus Camelus, bearing distinctive fatty deposits known as humps on its back. There are two species of camels: the dromedary or Arabian camel has a single hump, and the bactrian has two humps. Dromedaries are native to the dry desert areas of West Asia, and Bactrian camels are native to Central and East Asia. Both species are domesticated; they provide milk and meat, and are working animals.
The term camel is derived via Latin and Greek from Hebrew or Phoenician gāmāl, possibly from a verb root meaning 'to bear/carry' (related to Arabicjamala).[1]
Camel is also used more broadly to describe any of the six camel-like creatures in the family camelidae: the two true camels, and the four South Americancamelids: the llama, alpaca, guanaco, and vicuña.
The average life expectancy of a camel is 40 to 50 years. A fully grown adult camel stands 1.85 m (6 ft 1 in) at the shoulder and 2.15 m (7 ft 1 in)[clarification needed] at the hump. The hump rises about 75 cm (30 in) out of its body. Camels can run at up to 65 km/h (40 mph) in short bursts and sustain speeds of up to 40 km/h (25 mph).
Fossil evidence indicates that the ancestors of modern camels evolved in North America during the Palaeogene period (see also Camelops), and later spread to most parts of Asia. The people of ancient Somalia or the Kingdom of Punt first domesticated camels well before 2000 BC.
DOG
CAT
RED PANDA
The red panda (Ailurus fulgens, or shining-cat), is a small arboreal mammal native to the eastern Himalayas and southwestern China.[2] It is the only extant species of the genus Ailurus. Slightly larger than a domestic cat, it has reddish-brown fur, a long, shaggy tail, and a waddling gait due to its shorter front legs. It feeds mainly on bamboo, but is omnivorous and may also eat eggs, birds, insects, and small mammals. It is a solitary animal, mainly active from dusk to dawn, and is largely sedentary during the day.
The red panda has been classified as Vulnerable by IUCN because its population is estimated at fewer than 10,000 mature individuals. Although red pandas are protected by national laws in their range countries, their numbers in the wild continue to decline mainly due to habitat loss and fragmentation, poaching, and inbreeding depression.[2]
The red panda has been previously classified in the families Procyonidae (raccoons) and Ursidae (bears), but recent research has placed it in its own familyAiluridae, in superfamily Musteloidea along with Mustelidae and Procyonidae.
SNOW LEOPARD
The snow leopard (Uncia uncia or Panthera uncia) is a moderately large cat native to the mountain ranges of South Asia and Central Asia. The classification of this species has been subject to change and its exact taxonomic position will not be resolved until further studies are conducted.
Snow leopards live between 3,000 and 5,500 metres (9,800 and 18,000 ft) above sea level in the rocky mountain ranges of Central and South Asia. Their secretive nature means that their exact numbers are unknown, but it has been estimated that between 3,500 and 7,000 snow leopards exist in the wild and between 600 and 700 in zoos worldwide.[4]
Snow leopards are smaller than the other big cats but, like them, exhibit a range of sizes, generally weighing between 27 and 55 kg (60 and 120 lb), with an occasional large male reaching 75 kg (170 lb) and small female of under 25 kg (55 lb).[5][6] Body length ranges from 75 to 130 centimetres (30 to 50 in), with the tail adding a further 80 to 100 cm (31 to 39 in) to that length.[7][8] These cats stand about 60 cm (24 in) at the shoulder.[9]
Snow leopards have long thick fur, and their base color varies from smoky gray to yellowish tan, with whitish underparts. They have dark gray to black open rosettes on their body with small spots of the same color on their heads and larger spots on their legs and tail. Unusually among cats, their eyes are pale green or gray in color.[7][8]
Snow leopards show several adaptations for living in a cold mountainous environment. Their bodies are stocky, their fur is thick, and their ears are small and rounded, all of which help to minimize heat loss. Their paws are wide, which distributes their weight better for walking on snow, and have fur on their undersides to increase their grip on steep and unstable surfaces; it also helps to minimize heat loss. Snow leopards' tails are long and flexible, helping them to maintain their balance, which is very important in the rocky terrain they inhabit. Their tails are also very thick due to storage of fats and are very thickly covered with fur which allows them to be used like a blanket to protect their faces when asleep.[8][10]
The snow leopard has a short muzzle and domed forehead, containing unusual large nasal cavities that help the animal breathe the thin, cold air of their mountainous environment.[7]
The snow leopard cannot roar, despite possessing partial ossification of the hyoid bone. This partial ossification was previously thought to be essential for allowing the big cats to roar, but new studies show that the ability to roar is due to other morphological features, especially of the larynx, which are absent in the snow leopard.[11][12] Snow leopard vocalizations include hisses, chuffing, mews, growls, and wailing.
Sunday, 12 February 2012
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