美洲野牛

A change in the number of bison had an effect on the whole wildlife chain of the plains.

美洲野牛数量的变化对平原上的整个野生动物链产生了影响。

This suggests that all present-day bison are descended from a very small group of animals.

这意味着，今天所有的美洲野牛都是由同一小群祖先所繁殖而来。

The hunter trailed the wounded buffalo through the bush.

猎人在灌木丛中追踪那只受伤的美洲野牛。

In the early morning or evening, visitors sometimes see moose, large deer-like animals, or buffalo eating grass along the shores of Lake Yellowstone.

清晨或傍晚，游客们有时会沿着黄石湖岸观看驼鹿，一种大型鹿科动物，或者是吃草的美洲野牛。

Then the plows went in and ripped off the protection of the buffalo grass and opened the helpless soil to quick water and slow drought and the mischievous wind that roamed through the Great Central Plains. There has always been more than enough desert in America ; the new settlers, like overindulged children, created even more.

其后的耕犁又强行剥去了美洲野牛草皮对土壤的保护，暴露的土壤饱受湍急的水流、缓漫的干旱和横扫美洲中央大平原的狂风的无情肆虐，在美国，沙漠已经多的不能再多了，而新的定居者们就象被宠坏了孩子们，又创造了更多的沙漠。

Of course, that might just mean that the Clovis people had not quite exterminated bison before they, themselves, disappeared.

当然，这可能仅仅意味着克洛维斯人在他们自己灭绝之前并没有完全猎杀完美洲野牛。

In the nineteenth century a number of Native American tribe, such as the Comanche, A B lived a nomadic existence hunting buffalo.

改正：tribe tribes 翻译参考：19世纪的很多北美的部落里，例如科曼奇族，过着一种以打猎美洲野牛为生的游牧生活。

A mixed species exhibit including bison , jack rabbits , pronghorn , prairie dogs , and sage grouse will illustrate the typical organisms.

混合展出的动物种类包括美洲野牛、长腿大野兔、叉角羚、草原土拨鼠和艾草榛鸡，代表了该地区的典型物种。

Among wild animals, only American buffaloes are susceptible, and not African buffaloes or other wild ruminants.

在野生动物中，只有美洲野牛易感，而非洲野牛或其他反刍动物不易感。

Among wild animals, only American buffalo es are susceptible, and not African buffalo es or other wild ruminants.

在野生动物中，只有美洲野牛易感，而非洲野牛或其他反刍动物不易感。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。