To help resolve the debate , archaeologist todd surovell of the university of wyoming , laramie , and colleagues tested two assumptions 历史上曾经至少有12种大象和猛犸象漫游在非洲、美洲和欧亚大陆，但现在只剩下亚洲象和非洲象两种。
The emma maersk ' s huge diesel engine has the power of 1 , 200 cars and its anchor weighs as much as five african elephants ( about 30 tonnes ) 艾玛.马士基号的巨大柴油发动机的马力与1200辆轿车相当，锚的重量相当于五头非洲象（约30吨） 。
Anchorage zookeepers are installing a 16 , 000 - pound 7 . 3 - ton treadmill to keep an isolated elephant from getting fat during the long , cold alaskan winters 这台长20英尺6米的跑步机是专门为动物园中一头名叫麦吉的23岁雌性非洲象设计的。
The international trade in ivory products was banned in 1990 following the inclusion of the african elephant in appendix i of cites 随著濒危野生动植物种国际贸易公约把非洲象列入附录一，所有象牙制品于1990年开始严禁进行国际贸易。
The lesson includes napoleon , pompeii , language , the news media , acid rain , dinosaurs , level of language usage , power , asian and african elephants , the american civil war 而其文章标题有拿破仑,庞贝城,语言,新闻媒体,酸雨,语言用法,亚洲与非洲象,美国内战,恐龙…等。
The property ' s feeding sites and frost - free water areas make it suitable for african elephants , which can stand 10 feet tall at the shoulder and weigh more than 10 , 000 pounds , officials said 人员的说法，这家牧场的草地以及永不结霜的河流非常适宜非洲象的生长。匹兹堡动物园及该动物园的ppg
African elephants only have four teeth to chew their food with . however , each tooth is 12 inches long , and their tusks are elongated teeth that grow throughout their lives , like fingernails 非洲象只有四只牙齿用以咀嚼食物，但是每只牙长达12英寸，而且尖尖的象牙是延长的牙齿，就像指甲一样终生生长。
What is clear from the stanford team ' s earlier work with trained african elephants is that under ideal conditions , elephant infrasound calls can make seismic waves that can travel almost a mile and a half ( two kilometers ) 在通过驯服的非洲象进行的较早的研究中，斯坦福大学研究小组已清楚：理想条件下，大象的次声吼叫能使震波传播两公里左右。
As zoos across the nation debate whether to keep elephants in captivity , the pittsburgh zoo is buying a former hunting ranch to house a new conservation center to breed african elephants 就在美国各地动物园正在就是否应当继续像以前那样将大象关在笼子里圈养而辩论不休的时候，该国匹兹堡动物园近日买下了一座从前专门用于狩猎活动的牧场，打算在那里为非洲象建立一个全新的野外保护中心。
At the cites meeting in kenya in april 2000 , one of the high profile issues was the proposed downlisting , from appendix i to ii of south africa s population of african elephants to allow annual sales of ivory stocks , and proposals to resume ivory trade and trade in elephant hides and leather goods from botswana , namibia , zimbabwe to japan 2000年4月在肯尼亚举行的濒危野生动植物种国际贸易公约缔约国会议，其中一项引起广泛关注的议题是把南非的非洲象种群由附录一改为列入附录二，以准许象牙年销另外有建议恢复象牙贸易及准许博茨瓦纳纳米比亚及津巴布韦输出象皮及象革产品往日本。
