Thứ Năm, 1 tháng 11, 2012

African Wild Dog

 

The Life of Animals | African Wild Dog | It 'the only canid species lack dewclaws on the front legs. This is the largest canid Africa, just behind the gray wolf, is the world's second largest wild canid exists. Animals in southern Africa are generally larger than the east or west. Has a dental formula consists of 42 teeth. Premolars are relatively large compared with those of other canids, so that a large quantity of bone, much like hyenas consume. The African wild dog has a bite force measured ratio (BFQ, bite force on the mass of the animal) at 142, the highest existing mammalian order Carnivora, although exceeded by the Tasmanian devil, a marsupial carnivore. Can kill at the age of 8-11 months small prey, but depend on the pack kills most of their food. Wild dogs reach sexual maturity at the age of 12-18 months.


The females of the pack of birth until 14-30 months old disperse and join other packs that lack sexually mature females. Among the wild dogs compete women access to males that. The practice may leave adults behind the guard puppies hunting efficiency in smaller packages to reduce The packages are divided into male and female hierarchies. Previously it was thought that if a division of alpha-chip package, but this was rejected (albeit on a small scale) by Mutual of Omaha Wild Kingdom, in which 6 dogs that had been raised in captivity (reached only 5 the island, a died of anesthesia) lost their two alpha, which purports to be fixed crocodiles, but the 3-pack and a new alpha male and the female were. In the group of women, the oldest will have alpha status over the others, so keep a mother her alpha status over her daughters and sisters. Among men, the father's brother and many others are dominant dominant without a father or a brother, the other to be the new dominant breeders.


If two to this lonely separate sexes meet, they may form a pack, if not correlated. Independent wild dogs are sometimes in groups, but this is usually temporary. In contrast, the wild dogs occasionally hostile independent experiments buy packages. In the Serengeti, the average dog density (prior to local extinction of the species) a dog for every 208 square kilometers (80 square miles), while in the Selous Game Reserve, the average density was 1 dog every 25 square kilometers (9, 7 square MI). In the Serengeti, the average range at 1,500 square kilometers (580 square miles) is estimated, although individual ranges overlap extensively. It once approximately 500,000 African Wild Dogs in 39 countries, and packs of 100 or more were were not uncommon. Smaller populations, but surely, apparently several hundred people in Zimbabwe (Hwange National Park), South Africa (Kruger National Park), and the complex Ruaha / Rungwa / Kisigo Tanzania. Isolated populations persist in Zambia, Kenya and Mozambique.


The African wild dog is to fight by human overpopulation, habitat loss and killing endangered predators. Used very large areas (they can only exist in large protected areas), and is strongly influenced by competition with larger carnivores that rely on the same prey base, particularly the lion and hyena. While adult wild dogs run faster pace than larger predators, lions often kill as many wild dogs and puppies to chew on the site, but can not eat. One by one the hyena is much more powerful than the wild dog, but a large group of wild dogs hunt successfully, a small number of hyenas because of their teamwork. Most of the national parks in Africa are too small for a pack of wild dogs, and tend to be expansion packs for protected areas, ranch or farm land. Breeders and farmers to protect their domestic animals by killing the wild dogs. Like other carnivores, the African wild dog is sometimes affected by outbreaks of viral diseases such as rabies, distemper and parvovirus. Although these diseases are no longer pathogenic or virulent for wild dogs, the small size of most wild dog populations to the risk of local extinction due to illness or other problems. 

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Thứ Tư, 31 tháng 10, 2012

Cicada

 

The Life of Animals | Cicada | The adult insect, known as imago is generally from 2 to 5 cm (1-2 inches) long, although some tropical species can reach 15 cm (6 inches), for example, Imperata Pomponia Malaysia. Cicadas have prominent eyes separated on the sides of the head, short antennae protruding between or in front of the eyes, and membranous front wings. Cicada nymphs suck xylem sap of several species of trees, including oak, cypress, willow, ash and maple. Most cicadas go through a life cycle that lasts from two to five years. A predator with a shorter life cycle of at least two years with cicadas reliability of assault In Greek mythology, Tithonus eventually turns into a cicada after obtaining immortality but not eternal youth, by Zeus.


The cicada has represented insouciance from classical antiquity. Jean de La Fontaine began his collection of fables Les Fables de La Fontaine with the story La Cigale and the Ant (The Cicada and the Ant) based on one of Aesop's fables: in it the cicada spends the summer singing, the ant stores away, and went without food when the weather turns sour. In Japan, the cicada is associated with the summer season. The songs of the cicadas are often used in movies and television for the Japanese scene takes place in the summer.


Since the cicada emerges from the ground to sing every summer in Japan is considered a symbol of reincarnation is particularly important that the cicada silence, leaving an empty shell. But, since the cicada only lives for a short period of time long enough to attract a mate with its song and complete the fertilization process, are considered a symbol of transience. In the Japanese novel The Tale of Genji, the main character of his poetry equals a love interest of a cicada by how smoothly flowing scarf like a cicada shell lost when you move. A shell of the cicada also plays a role in winter cicada manga. 


In the classic Chinese novel Three Kingdoms Diaochan also got its name from the black-tailed decoration and shaped jade cicada (Chan), which at the time adorned the hats of high officials. Month Javanese version called Pranata cycle cicadas mangsa used as an indicator of the onset of the dry season (April-May). On the Run From now, cicadas play an important role in the books. romanticizes the insect as a creature that sings until it dies. In Tuscany, the Italian word for the cicada (Cicada) is a euphemism for "vagina", used by children (the usage is equivalent to "Fanny" in English / Australian English). In 2004, "cicada" ranked 6th in Merriam-Webster word of the year.
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Chủ Nhật, 28 tháng 10, 2012

Flying Snake

 

The Life of Animals | Flying Snake | Chrysopelea also below their assigned common name "flying snakes" known. He slides his balance comb over his belly and slid against the rough bark of tree trunks, making up a tree. The combination of sucking in your stomach and make a lateral move to the curve in the air makes the snake can float in the air, which can save energy from the earth and terrestrial predators Dodge limited concave bearing surface that creates long journey suction snake flattens the stomach body to twice the width of the back of the head to the anal hole is near the end of the tail of the snake, making the cross section of the body of the snake resemble sectional through a cross Frisbee or flying saucer.


When a flying disk revolutions in the air, resulting in increased projecting section concavity air pressure to the center of the disc, to raise the flying disc. A snake is continuously moved in lateral undulation for the same effect of increasing the air pressure below the arcuate body to create a slide. Flying snakes are able to glide better than flying squirrels and other gliding animals, despite the absence of limbs, wings, wing extensions or other, glide through the forest and jungle life with a distance as great as 100 m. There are five recognized species of flying snake, found in western India Indonesian archipelago.


It is a bit poisonous snakes ", but its small and fixed rear teeth that make them dangerous to humans Golden tree snake or ornate flying snake, adorned Chrysopelea (Shaw, 1802) This result is the largest species of snake fly, up to four meters long. Although it is the golden tree snake, there are other colors, for example, tend to have a few steps toward the thin lime green pure yellow, while in India, the IT-orange red marks and small black bars back, rich colors almost paradise tree snake. Paradise tree snake, Paradisi Chrysopelea Boie and Boie, 1827 This species of flying snake fields of up to three meters long and is very popular in the pet trade in Europe. Their bodies are black, but covered with rich green scales. Tree Band snake or flying serpent, Chrysopelea Pelias (Linnaeus, 1758) Twin-Lock: This is the smallest species of flying snakes up to two meters long. Though small, it is certainly one of the rarest species of flying snakes in the range.  

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Thứ Năm, 25 tháng 10, 2012

Wolverine

 

The Life of Animals | Wolverine | Anatomically, the wolverine is an animal strong and muscular. With short legs, broad, rounded head and small eyes with short rounded ears, it resembles a bear more than others martens. Although his legs are short to facilitate his long legs and five fingers plantigrade posture movement in deep snow.Adult wolverine is about the size of a medium sized dog, with a length usually ranging from 65 to 107 cm (26-42 inches), a tail 17 to 26 cm (6.7 to 10 inches) and weighing 9-25 kg (20-55 lb) but exceptionally large males can weigh up to 32 kg (71 lb). Wolverines have thick, dark, oily, which is highly hydrophobic, making it. The pungent odor has resulted in the nickname "skunk bear" and "nasty cat.


The wolverine is a predator hunting versatile and powerful treasure. Prey is mainly composed of small and large mammals listed wolverine kill prey such as adult deer are larger distance themselves feed on species such as porcupines, squirrels, marmots, beavers, rabbits, voles, mice, shrews, lemmings, caribou, deer, white-tailed deer, mule deer, sheep, moose and elk The smaller predators sometimes hunted, including marten, mink, fox, lynx, Canada, weasels, bobcats and coyotes and pups. Wolverines often pursue live prey, which is relatively easy to obtain, including animals in traps, newborn mammals and deer (including elk and moose adults) is weakened if caught by winter or immobilized by snow. Most of the support wolverine on carrion, which almost exclusively in winter and spring from. Wolverines end up eating carrion after the predator feeds (especially wolf packs) or just take another predator. That eating live prey or carrion, Wolverine style appears voracious feeding anything.


Adaptation to food that is easy, especially in winter Armed with powerful jaws, sharp claws, and a thick skin, wolverines, like most mustelids, are very strong for their size. Death to defend themselves against predators larger or more numerous. At least you have a wolverine apparent attempt to steal £ 12 by the death of a black bear (adult males weigh 400-500 lb (180-230 kg). account Another polar bear of unknown age and weight down with a similar wolverine where the smaller, tenacious predator came first. Interestingly, while Wolves Wolverines dominated the competition a corpse, some wolves hunting Wolverines used and may, wolves such cases, a complete lack wolverine lead in a given area. Wolverines inhabiting the Old World (especially Fennoscandia) are active predators than their North American cousins.


Often feed on carrion left by wolves, changes in the population of wolves may affect the population of wolverines. Wolverines also sometimes known to eat plants. Women often do not produce young if food is scarce. The gestation period is 30-50 days wolverine. Many cities, teams and organizations use the wolverine as a pet. For example, the State of Michigan is, by tradition, known as "The Wolverine State," and the University of Michigan wolverine as its mascot. The association is long established: for example, when many volunteers Detroit in the American Civil War and George Armstrong Custer, who led the Michigan Brigade, the fight against the Wolverines. Wolverines are, however, extremely rare in Michigan. Wolverine prominently in the mythology of eastern Quebec and Labrador Innu.
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Thứ Tư, 24 tháng 10, 2012

Tibetan Mastiff

 

The Life of Animals | Tibetan Mastiff | Currently, some breeders are two "types" of Tibetan Mastiff, Do-Khyi and Tsang-Khyi. Khyi-Tsang (which in Tibetan means "dog Tsang") is also called, type "monastery", described as generally taller, heavier, heavier boned with facial wrinkling and haw Do- Khyi or of "nomad". Dogs bred in western weighs 140 lbs (64 kg) and 180 pounds (82 kg), especially if they are in good condition and not overweight. Tibetan Mastiff is considered a primitive breed. Tibetan Mastiff coat one does not smell unpleasant "big-dog" that affects many large breeds. (Dog sterilization or bitch may dramatically affect the coat texture, density, and shedding pattern.)


Tibetan mastiffs are displayed in a standard in the West, but separated by the Indian breed standard into two varieties lion's head (or smaller, exceptionally long hair from forehead to withers, creating a necklace or mane) and Tiger Head ( Moreover, shorter hair). Native type of dog, which still exists in Tibet and other regions of the Himalayas (in Bhutan, Nepal and northern India), and race can vary temperament westernized, but not identical breeding dogs, all within "the same litter, raised in the same house. Some Western and Asian breeders are trying to create a replica of the legendary dog which they identify as "true Tibetan Mastiff" or Tsang-Khyi. Some breeders have crossed recognize Tibetan mastiff dog with Neapolitan Chinese curse, Chow Chow and other races in the creation of what is now called the market "dog. 


Inside socialized dog, you can thrive in a spacious courtyard, surrounded by a canine companion, but it is not generally suitable for an apartment dog. Breed dogs are generally more accommodating to the West, although somewhat aloof with strangers coming to the house. With hundreds of years of selective breeding flock protection and family guardian, the breed was recognized as a night watchman, keeping predators and intruders at bay, barking sounds for any over night. Tibetan Mastiff leaving one outside all night with neighbors nearby is not recommended. Are excellent family dogs good family. Lack of consistency, rational discipline can lead to dangerous dogs, unpredictable (even if this is true for almost all breeds of dogs).


Unlike most large breeds, life expectancy is long, some 10-14 years - at least a few lines. Others, clean lines more closely the production of short, dogs are not healthy. The breed has fewer genetic health problems than many breeds, but cases can be found of hypothyroidism, entropion, ectropion, skin problems including allergies, autoimmune problems including demodex, missing teeth abnormalities (bite or sting), disease problems heart, epilepsy, progressive retinal atrophy (PRA), cataract, and small channels, ear, with a tendency to infection. As with most large dogs, some suffer from hip dysplasia or elbow. Demyelinative canine hereditary neuropathy (NIC), a hereditary disease, he appeared in one of the prominent Tibetan mastiffs lines in 1980.



Hypothyroidism is quite common in Tibetan mastiffs, as in many large breeds "North". Many dogs of this breed have "low" thyroid values but no clinical symptoms. Veterinarians and owners of different views on the relative merits of medication dogs that test "low" but are completely asymptomatic. It is an ancient breed. A very questionable laboratory study of Nanjing Agricultural University Animal genetics and breeding Molecular Evolution in Nanjing, China, found that while most common dog breeds genetically diverged from the wolf approximately 42,000 years, the Tibetan Mastiff genetically diverged from wolf approximately 58,000 years Many Tibetan Mastiff breeders and owners (and their websites) says Marco Polo encountered the large Tibetan dogs in his travels and described all this "tall as a donkey with a voice as powerful as that of a lion.


After 1980, the breed began to gain popularity worldwide. Although the breed is still considered somewhat "rare, since most active farmers stood and produced a sufficient number of dogs, problems and show organizations (FCI AKC) began to recognize the breed. Initially the breed suffered as a result of limited gene pool of the original stock, but today's reputable breeders work hard to reduce genetic problems through selective breeding and the international exchange of new blood lines. In 2008, the Tibetan Mastiff competed for the first time at the Westminster Kennel Club. A woman in China was reported to have spent more than 4 million yuan to buy a 18-month-old male Tibetan Mastiff breed which he named Yangtze No. 2 Were there other similar reports of dogs are sold at astronomical prices, however, most of them seem to be trying to drive farmers to price their dogs.
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Chủ Nhật, 21 tháng 10, 2012

Chinstrap Penguin

 

The Life of Animals | Chinstrap Penguin | Penguins can reach 68; cm (27 inches) in length and weighing up to 6 kg (13.2 lb) However, its weight can be as low as 3 kg (6.6 lb) depending on the reproductive cycle. The men are larger and heavier than females.Adults face fins jugular "are black with white border, the inner faces of the fins are white. 'S is white that extends behind the eyes, which are reddish brown, chin and neck are white, while the short beak is black. strong legs and webbed feet are pink. chinstrap penguin black and white gradient can disguise aquatic predators, such as seals. The goatee is able to withstand swimming in icy waters because of their feathers narrow, which provide a waterproof jacket

 

 

 


Penguins are considered the most aggressive species of penguin The predator jugular adult Leopard Seal. Eggs and chicks can fall victim to birds such as skuas and sheath bills brown. On land, build nests circular stones, and lay two eggs, which are incubated by the male and female quarters for 6 days. The chicks hatch after about 37 days, and the soft gray backs and white fronts. Penguins, by its nature, the eggs hatch and are social creatures.
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Thứ Sáu, 19 tháng 10, 2012

Sumatran Orangutan

 

The Life of Animals | Sumatran Orangutan | The Sumatran orangutan (4.6 feet) grows to about 1.4 meters tall and 90 kg (200 pounds) for men. Females are smaller, on average 90 cm (3.0 ft) and 45 kg (99 pounds). Compared to the case of Borneo, Sumatra orangutans faces are thinner and longer, your hair is more the color of red light with orangutans in Borneo Sumatran orangutan comparison tend more frugivorous and especially insects. Favorite fruits are figs and jackfruit. They also eat bird eggs and small vertebrates. Sumatran Orangutans spend far less time feeding on the inner bark of trees. Sumatran orangutans have been observed in nature Balimbing Suaq marshes with tools. An orangutan break a road about a meter long, breaking branches and turmoil to an end. Inside are seeds that orangutans eat you, but they are fiberglass as the hairs that are painful when surrounded eaten. An orangutan eating Neesia select a five-inch stick, remove the peel, then carefully collect the hairs with it.


The Sumatran orangutan is also arboreal than its cousin in Borneo, what could the presence of large predators, such as the Sumatran tiger. The Sumatran orangutan is more social than its counterpart in Borneo. For groups of orangutans gather to feed on the mass of fruiting bodies in the image. Mature males prefer to mate. Sumatran orangutans men sometimes., A delay of several years in the development of secondary sexual characteristics, such as cheeks and droopy muscle mass The average Sumatran orangutan births is 9.3 years - the longest reported in great apes, including orangutans of Borneo. Infant orangutans stay with their mother for up to three years.


The Sumatran orangutan is endemic to the island of Sumatra and is mainly restricted to the north of the island. In the wild, orangutans of Sumatra survive in Aceh (NAD), the northern tip of Sumatra. A 2004 survey estimated that about 7,300 Sumatran orangutans still live in the wild. A breeding program was successfully implemented in Bukit Tiga Puluh National Park in Riau and Jambi provinces. Orangutans have 48 chromosomes. The Sumatran orangutan genome was sequenced in January 2011, based on a captured woman, Susie. After humans and chimpanzees Sumatran orangutan is the third existing hominid species, whose genome sequenced.


The researchers also published less complete copies of ten, five wild orangutans of Borneo and Sumatra five. It was found that genetic diversity is lower in Borneo orangutans (Pongo pygmaeus) and Sumatran (Pongo abelii), despite the fact that the orangutans of Borneo is home to many Sumatra in the six or seven times.


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