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When I grow up, I want to be an I want to build a big house and a small house for my father and We will live There will be a garden and playground in front of the We will grow beautiful flowers and fruit trees in the We will grow grass in the I will buy a big I will take my father and mother to many 当我长大,我想工程师。 我想建立一个大房子,一个小房子我父亲和母亲。 我们将一起生活。 有一个花园和游乐场屋前。 我们将会增加花和果树的花园。 我们将种草的操场。 我会买一辆。 我将我的父亲和母亲很多地方。 虽然有点肤浅 但英语作文这样也可以了 希望能对你有帮助

论文陈述稿五分钟英语作文

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尘埃落定吧

The giant panda is a mammal classified in the bear family, Ursidae, native to central-western and southwestern C[1] It is easily recognized by its large, distinctive black patches around the eyes, over the ears, and across its round Though belonging to the order Carnivora, the panda has a diet which is 99% Pandas may eat other foods such as honey, eggs, fish and The Giant Panda is an endangered According to the latest report[2], China has 239 giant pandas in captivity by Nov 2007, 128 of them in Wolong and 67 in Chengdu, with 27 pandas living outside the It also estimated that around 1,590 panda are living in the [2] However, a 2006 study via DNA analysis estimated that there might be as many as 2000-3000 pandas in the [3] Though reports show that the numbers of wild pandas are on the rise,[4][5] the World Conservation Union (IUCN) believes there is not enough certainty to remove pandas from the endangered animal [6] The giant panda is a favorite of the human public, at least partly because many people find that the species has an appealing baby-like Also, it is usually depicted reclining peacefully eating bamboo, as opposed to hunting, which adds to its image of Though giant pandas are often assumed docile because of their cuteness, they have been known to attack humans, presumably out of irritation rather than predatory Research shows that in cases in which its offspring may be under threat, the panda can and often will react violently[citation needed] Contents [hide] 1 Description 2 Behavior 1 Diet 3 Classification 1 Subspecies 4 Uses and human interaction 1 Panda diplomacy 5 Conservation 6 Reproduction 7 Name 8 Pandas in zoos 1 North America 1 Notable North American-born pandas 2 Europe 3 Asia 4 Australia 9 Pandas on television 10 See also 11 Footnotes 12 References 13 External links Description a Giant Panda cub, weight approximately The Giant Panda has a black-and-white Adults measure around 5 m long and around 75 cm tall at the Males can weigh up to 115 kg (253 pounds) Females are generally smaller than males, and can occasionally weigh up to 100 kg (220 pounds) Giant Pandas live in mountainous regions, such as Sichuan, Gansu, Shaanxi, and T While the Chinese dragon has been historically a national emblem for China, since the latter half of the 20th century the Giant Panda has also become a national emblem for C Its image appears on a large number of modern Chinese commemorative silver, gold, and platinum The Giant Panda has a paw, with a "thumb" and five fingers; the "thumb" is actually a modified sesamoid bone, which helps the panda to hold bamboo while Stephen Jay Gould wrote an essay about this, then used the title The Panda's Thumb for a book of essays concerned with evolution, punctuated equilibrium, intelligent design, the Piltdown Man hoax, Down's Syndrome, and the relationship between dinosaurs and birds among It also has a short tail, approximately 15 cm Giant Pandas can usually live to be 20-30 years old in Behavior Until recently, scientists thought giant pandas spent most of their lives alone, with males and females meeting only during the breeding Recent studies paint a different picture, in which small groups of pandas share a large territory and sometimes meet outside the breeding [citation needed] Like most subtropical mammals, but unlike most bears, the giant panda does not Diet Pandas eating bamboo at the National Zoo in Washington, DCDespite its taxonomic classification as a carnivore, the panda has a diet that is primarily herbivorous, which consists almost exclusively of However, pandas still have the digestive system of a carnivore and do not have the ability to digest cellulose efficiently, and thus derive little energy and little protein from consumption of The average Giant Panda eats as much as 20 to 30 pounds of bamboo shoots a Because pandas consume a diet low in nutrition, it is important that they keep their digestive tract Panda eating bambooAs the average temperature of the region has increased[citation needed], the panda has pushed its habitat to a higher altitude and limited available Furthermore, the timber profit gained from harvesting bamboo has destroyed a significant portion of the food supply for the wild Because of all these elements the population of wild pandas decreased by 50 percent from 1973 to 1984 in six areas of C Twenty-five species of bamboo are eaten by pandas in the wild, such as Fargesia dracocephala[7] and Fargesia [8] However, it is hard to live in the remains of a forest and feed on dying plants in a rugged Only a few bamboo species are widespread at the high altitudes pandas now Bamboo leaves contain the highest protein levels; stems have Because of the synchronous flowering, death, and regeneration of all bamboo within a species, pandas must have at least two different species available in their range to avoid The panda's round face is an adaptation to its bamboo Their powerful jaw muscles attach from the top of the head to the Large molars crush and grind fibrous plant While primarily herbivorous, the panda still retains decidedly ursine teeth, and will eat meat, fish, and eggs when In captivity, zoos typically maintain the pandas' bamboo diet, though some will provide specially formulated biscuits or other dietary Classification For many decades the precise taxonomic classification of the panda was under debate as both the giant panda and the distantly related red panda share characteristics of both bears and However, genetic testing suggests that giant pandas are true bears and part of the Ursidae family,[citation needed] though they differentiated early in history from the main ursine The giant panda's closest ursine relative is the Spectacled Bear of South A Disagreement still remains about whether or not the red panda belongs in Ursidae, the raccoon family Procyonidae, or in its own family, A The giant panda has been referred to as a living [9] The red panda and the giant panda, although completely different in appearance, share several They both live in the same habitat, they both live on a similar bamboo diet and they both share a unique enlarged bone called the pseudo thumb, which allows them to grip the bamboo shoots they Subspecies Hua Mei, the baby panda born at the San Diego Zoo in 1999Two subspecies of giant panda have been recognized on the basis of distinct cranial measurements, color patterns, and population genetics (Wan et , 2005) Ailuropoda melanoleuca melanoleuca consists of most extant populations of These animals are principally found in Sichuan and display the typical stark black and white contrasting Qinling Panda, Ailuropoda melanoleuca qinlingensis is restricted to the Qinling Mountains in Shaanxi at elevations of 1300–3000 The typical black and white pattern of Sichuan Pandas is replaced with a dark brown versus light brown The skull of A qinlingensis is smaller than its relatives, and it has larger Uses and human interaction Unlike many other animals in ancient China, pandas were rarely thought to have medical In the past, pandas were thought to be rare and noble creatures; the mother of Emperor Wen of Han was buried with a panda skull in her Emperor Taizong of Tang is said to have given Japan two pandas and a sheet of panda skin as a sign of The giant panda was first made known to the West in 1869 by the French missionary Armand David, who received a skin from a hunter on 11 March The first westerner known to have seen a living giant panda is the German zoologist Hugo Weigold, who purchased a cub in Kermit and Theodore Roosevelt, J, became the first foreigners to shoot a panda, on an expedition funded by the Field Museum of Natural History in the In 1936, Ruth Harkness became the first Westerner to bring back a live giant panda, a cub named Su-Lin[10] who went to live at the Brookfield Zoo in C These activities were halted in 1937 because of wars; and for the next half of the century, the West knew little of Gao Gao, an adult male giant panda at San Diego Zoo Panda diplomacy Main article: Panda diplomacy Loans of giant pandas to American and Japanese zoos formed an important part of the diplomacy of the People's Republic of China in the 1970s as it marked some of the first cultural exchanges between the PRC and the W This practice has been termed "Panda Diplomacy" By the year 1984, however, pandas were no longer used as agents of Instead, China began to offer pandas to other nations only on 10-year The standard loan terms include a fee of up to US$ 1,000,000 per year and a provision that any cubs born during the loan are the property of the People's Republic of C Since 1998, due to a WWF lawsuit, the US Fish and Wildlife Service only allows a US zoo to import a panda if the zoo can ensure that China will channel more than half of its loan fee into conservation efforts for wild pandas and their In May 2005, the People's Republic of China offered Taiwan (Republic of China) two pandas as a This proposed gift was met by polarized opinions from Taiwan due to complications stemming from cross-strait As of September, 2007, Taiwan has not accepted the [11] Conservation Giant pandas are an endangered species, threatened by continued habitat loss and by a very low birthrate, both in the wild and in Pandas have been a target for poaching by locals since ancient times, and by foreigners since they were introduced to the W Starting in the 1930s, foreigners were unable to poach pandas in China because of the Second Sino-Japanese War and the Chinese Civil War, but pandas remained a source of soft furs for the The population boom in China after 1949 created stress on the pandas' habitat, and the subsequent famines led to the increased hunting of wildlife, including During the Cultural Revolution, all studies and conservation activities on the pandas were After the Chinese economic reform, demands for panda skins from Hong Kong and Japan led to illegal poaching for the black market, acts generally ignored by the local officials at the Close up of a baby 7-month old panda cub in the Wolong Nature Reserve in Sichuan, CThough the Wolong National Nature Reserve was set up by the PRC government in 1958 to save the declining panda population, few advances in the conservation of pandas were made, due to inexperience and insufficient knowledge of Many believed that the best way to save the pandas was to cage As a result, pandas were caged at any sign of decline, and suffered from terrible Because of pollution and destruction of their natural habitat, along with segregation due to caging, reproduction of wild pandas was severely In the 1990s, however, several laws (including gun controls and the removal of resident humans from the reserves) helped the chances of survival for With these renewed efforts and improved conservation methods, wild pandas have started to increase in numbers in some areas, even though they still are classified as a rare In 2006, scientists reported that the number of pandas living in the wild may have been underestimated at about 1, Previous population surveys had used conventional methods to estimate the size of the wild panda population, but using a new method that analyzes DNA from panda droppings, scientists believe that the wild panda population may be as large as 3, Although the species is still endangered, it is thought that the conservation efforts are As of 2006, there were 40 panda reserves in China, compared to just 13 reserves two decades [3] The giant panda is among the world's most adored and protected rare animals, and is one of the few in the world whose natural inhabitant status was able to gain a UNESCO World Heritage Site The Sichuan Giant Panda Sanctuaries, located in the southwest Sichuan province and covering 7 natural reserves, were inscribed onto the World Heritage List in [12][13] Reproduction Contrary to popular belief, Giant pandas do not reproduce Studies have shown that wild pandas reproduce as well as North American brown [14] A female panda may have 2-3 cubs in a lifetime, on Growth is slow and pandas may not reach sexual maturity until five to seven years of The mating season usually takes place from mid-March to mid-M During this time, two to five males can compete for one female; the male with the highest rank gets the When mating, the female is in a crouching, head-down position as the male mounts from Copulation time is short, ranging from thirty seconds to five minutes, but the male may mount repeatedly to ensure successful The whole gestation period ranges from 83 to 163 days, with 135 days being the Baby pandas weigh only 90 to 130 grams (2 to 6 ounces), which is about 1/900th of the mother’s Usually, the female panda gives birth to one or two panda Since baby pandas are born very small and helpless, they need the mother’s undivided attention, so she is able to care for only one of her She usually abandons one of her cubs, and it dies soon after At this time, scientists do not know how the female chooses which cub to raise, and this is a topic of ongoing The father has no part in helping raise the When the cub is first born, it is pink, furless and It nurses from its mother's breast 6 to 14 times a day for up to 30 minutes at a For three to four hours, the mother may leave the den to feed, which leaves the panda cub One to two weeks after birth, the cub's skin turns gray where its hair will eventually become A slight pink color may appear on the panda's fur, as a result of a chemical reaction between the fur and its mother's A month after birth, the color pattern of the cub’s fur is fully A cub's fur is very soft and coarsens with The cub begins to crawl at 75 to 90 days; mothers play with their cubs by rolling and wrestling with The cubs are able to eat small quantities of bamboo after six months, though mother's milk remains the primary food source for most of the first Giant panda cubs weigh 45 kg (2 pounds) at one year, and live with their mothers until they are 18 months to two years The interval between births in the wild is generally two Breeders and biologists often experience difficulty in inducing captive pandas to mate, threatening their already diminished This problem may stem from the captive bears' lack of In an attempt to remedy this, some keepers in China and Thailand have shown their subjects videos containing footage of mating [15] In some cases, the bears have been sufficiently stimulated from the videos to engage in reproductive It is not likely that the animals actually learn mating behaviors from the video; rather, scientists believe that hearing the associated sounds has a stimulating effect on the bears exposed to
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