Wednesday, January 30, 2013



Animal You | Koala | The word comes from the koala Dharuk Gula. The scientific name of the koala's genus, Phascolarctos, is derived from Greek phaskolos "bag" and Arktos "bear". Although the koala is not a bear, English-speaking settlers of the late 18th century first called koala, due to its similarity with teddy bears. Other descriptive English names based on "bear" have included monkey bear, native bear, and tree bear Typical and New South Wales koala weights of 12 kg (26 pounds) for males and 8.5 kg (19 pounds) for females. In tropical and subtropical Queensland, but the koala is smaller (about 6.5 kg (14 lb) for an average male and just over 5 kg (11 lb) with an average female), a lighter color often quite scruffy gray, and has shorter, thinner layer. In Queensland, the koala is not considered the subspecies P. adustus cinereus, and the intermediate forms in New South Wales as P. cinereus cinereus. Koalas may also have white fur in rare cases due to a recessive gene.

The origins of the koala are unclear, although almost certainly descended from terrestrial wombat-like animals. Koala fossils are very rare, but some are found in northern Australia dating back 20 million years. The koala does not specialize in a diet of eucalyptus until the climate cooled and eucalypt forests grew in the place of rainforests. The fossil record indicates that before 50,000 years ago, large koalas regions inhabited southern Australia. The koala fills the same ecological role as the sloths of South America. The koala is very similar in appearance to the wombat (the side of family life), but has a thicker coat, much larger ears, and longer limbs. The koala has large, sharp claws to assist with climbing tree trunks. Weight varies from about 14 kg (31 lbs) for a large southern male, to about 5 kg (11 pounds) for a small northern female. The five fingers include two opposable thumbs koala, a power grip. The koala is one of the few mammals (other than primates) that fingerprints.

The dental formula for koalas is The male koala, like many marsupials, has a bifurcated penis. The brain of the ancestors of modern koala once filled the whole cranial cavity, but the species has declined dramatically, a degeneration scientists suspect is an adaptation to a diet low in calories. When under stress, koalas may produce a loud cry, which is presented as similar to that of a human child. A healthy female koala can produce one young each year for about 12 years. The twins are very rare, the first confirmed identical twin koalas, named "EUCA" and "Lyptus", were born at the University of Queensland, in April 1999. A baby koala is called Joey and he is bald, blind and deaf. The koala lives almost entirely on eucalyptus leaves. Dealing with koalas, stress, and the problem of aggression and stress from handling is a political problem in Australia

Koalas spend about three of the five mealtimes. Feeding time occurs, but usually at night. Koalas eat an average of 500 g (18 oz) of eucalyptus leaves every day, with powerful jaws chewing until a very fine paste before swallowing. The koala eats leaves a wide variety of eucalyptus, and sometimes even some species of eucalyptus are not as Acacia, Leptospermum and Melaleuca. There are many factors that determine which of the 680 species of eucalyptus trees the koala eats. Among the preferred species of trees, however, the most important factor which determines koala choose individual trees, is the concentration of a group of toxins known as phenolics formylated phloroglucinol. Research on koalas by fans at 13 parks and zoos in New South Wales shows that the favorite band of eucalyptus leaves was low in condensed tannins.

The Government of Australia is giving the koala as a priority species for conservation assessment. Government estimates of the national population numbers of koalas in the hundreds of thousands, although other studies have estimated a minimum of 80,000 koalas in the wild. The Australian Koala Foundation in 2008 is estimated at around 100,000 koalas in the wild. Like most native animals of Australia, the koala, legally, they can not be kept as pets in Australia or elsewhere. The only people who are permitted to keep koalas are wildlife carers and, occasionally, to researchers. There is a serious decline in the population of koalas in the wild in 2012. This is due to the current large-scale destruction of housing and urban development bush another, with consequent loss of koala habitat, dog attacks and a large increase in traffic, but also diseases and climate change. This is caused by a large number of dead koalas in nature, leading to the koalas are listed by the Federal Government of Australia as endangered species. In August 2012, the koala is also described as an endangered species.

2011 Queensland research show that the symptoms of Chlamydia in at least 50 percent of the population koalas. Chlamydia in koalas is not the same as the human form, but can lead to blindness, respiratory infections all koala koala and female infertility. Moreover, almost all koala koala koala in Queensland infected with retrovirus that suppress the immune system and interferes with the ability to fight against chlamydia. The koala requires large tracts of forest healthy, connected and long distances along tree corridors in search of new territories and friends. The long-term viability of the koala threatened both by genetic factors weaknessThe Australian Koala Foundation is the leading organization dedicated to the preservation of the koala and its habitat, mapping 40,000 km2 (15,000 square miles) of land for koala habitat and maintaining strong evidence that wild koala populations are in serious decline natural range of the species. "Municipalities in the growth of urban areas with koala populations that have established or are in the process of creating overlapping planning and controls to preserve habitat for koalas are Councils of the City of Victoria Ballarat, Macedon Ranges Shire Basin Authority Glenelg Hopkins management as well as the advice of Queensland Moreton Bay Regional Council and Redland Shire Council. Although the species is spread over a wide area, only parts of koala habitat remain.  

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