东北虎(Siberian Tiger)
The Siberian tiger (also known as the Amur, Korean, Manchurian, or North China tiger) is the largest and most powerful subspecies of naturally occurring feline. The Siberian tiger is almost totally confined to a very restricted part of eastern Russia, the Amur-Ussuri region of Primorye and Khabarovsk, a location it shares with the Siberian leopard, where they are now being actively protected. About 10% of Siberian tiger populations reside in China.
The tiger population in the Sikhote-Alin was 250 in 1992, increasing to 350 as of 2004, despite significant losses of cubs due to car accidents on the single road that crosses their territory. Illegal poaching has been brought under control thanks to frequent road inspections. It is rumoured that there are still around 20 of these tigers in the Mount Changbai area of China.As the total population of these tigers fell to 150 in the wild, many subpopulations are possibly not genetically viable, subject to potentially catastrophic inbreeding. However, Russian conservation efforts have led to a revival of the subspecies, and the number of individuals in the Primorsky region of Russia has risen from 450 to 500 in the past decade, indicating positive growth.
The Siberian tiger can weigh as much as 700lb (318 kg) or more. In years past, scientists believed that these cats could weigh up to 800lb (350 kg), but that earlier range, which was based largely on the estimates of hunters, is not now generally accepted. Apart from the size, Siberian tigers are differentiated from other tigers by their paler fur and dark brown, rather than black, stripes. Adept hunters, they prey primarily on red deer, wild boar, roe deer, sika deer, and goral, a goatlike animal, but will also take smaller prey like hares, rabbits, and salmon. They have sometimes even been known to kill and eat small Asiatic black bears. Since it is estimated that 85% of a Siberian tiger‘s diet is composed of red deer and wild boar, protecting these and other prey animals from illegal hunting may be just as important to the tiger‘s survival as preventing direct killing of the big cats.Siberian tigers some times cross breeds with Bengal tigers. A white Siberian tiger is usually the result of such cross breeding and it is unsure whether pure white Siberian tigers exist.
A Siberian tiger named Hodori was chosen to represent the 1988 Summer Olympics held in Seoul, South Korea.
名师GRE长难句完整版(7)
攻破新GRE逻辑阅读NO.31
攻破新GRE逻辑阅读NO.24
名师GRE长难句完整版(2)
攻破新GRE逻辑阅读NO.28
GRE NO题难句摘录及分析(一)
GRE阅读考试答题潜规则
GRE高分阅读定位技巧
攻破新GRE逻辑阅读NO.26
GRE阅读难句的4种类型
GRE阅读长难句实例分析6
GRE阅读中不能忽略的后缀词
名师GRE长难句完整版(3)
名师GRE长难句完整版(8)
解析GRE阅读与英文写作的关系
GRE考试阅读国外背景知识不容忽视
GRE阅读方法——老师笔记(1)
GRE阅读之逻辑不“逻辑”
GRE阅读需要考生一脑多用
GRE阅读难句训练贵在坚持
GRE阅读方法——老师笔记(2)
考试达人阅读笔记总结
GRE阅读考试技巧多,学会取舍是关键
GRE阅读方法——老师笔记(4)
GRE阅读长难句实例分析1
名师GRE长难句完整版(5)
GRE阅读几类话题及知识
攻破新GRE逻辑阅读NO.30
GRE阅读:男人如何选择手表(下)
GRE阅读方法——老师笔记(5)
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |