首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Elephants are the only remaining family in their biological order. There are three living species of elephants. These are the Af
Elephants are the only remaining family in their biological order. There are three living species of elephants. These are the Af
admin
2017-11-28
28
问题
Elephants are the only remaining family in their biological order. There are three living species of elephants. These are the African bush and forest elephants and the Asia. Other species have been extinct since the last ice age.
Elephants are the largest land mammals alive today. Their pregnancy period is 22 months. It is the longest of any land animal. At birth, it is common for an elephant calf to weigh 120 kg. An elephant may live as long as 70 years, and some even live longer. The largest elephant ever recorded was shot in Angola in 1956. It was male and weighed about 12, 000 kg. The smallest elephants were about the size of a calf or a large pig. They were a prehistoric variant that lived on the island of Crete. They existed until between 3000 BC and 5000 BC.
Elephants are increasingly threatened by humans. Human-elephant conflicts are often deadly. They kill 150 elephants and up to 100 people per year in Asia. The African elephant population has gone from 3 million in 1970 to about 600, 000 in 1989. The numbers of this beast then dropped even further. By 2000 the number was down to 272, 000. In recent years, efforts to save these animals have helped it rise. The elephant is now protected around the world. Many restrictions have been enacted for their benefit, strictly limiting their capture and domestic use. Trade in products such as ivory is also controlled.
Some scientists believe the elephant family is distantly related to sea cows. They also think there is a link between elephants and hyraxes. The fossil evidence does not offer certain proof while many believe the genetic evidence shows this. One theory suggests that these animals spent most of their time underwater. They would have used their trunks like snorkels for breathing. Modern elephants still have this ability, and they are known to swim like that. They can swim for up to 6 hours and 50 km.
Why do people around the world protect elephants?
选项
答案
They are declining in numbers due to human’s killing.
解析
事实细节题。第三段第一句至第六句指出,大象因为人类的屠杀数量大减。第七句至第十句指出现在大象受到了保护。由此可知,因为大象数量的减少,人们开始对它们进行保护。
转载请注明原文地址:https://kaotiyun.com/show/5pua777K
本试题收录于:
翻译硕士(翻译硕士英语)题库专业硕士分类
0
翻译硕士(翻译硕士英语)
专业硕士
相关试题推荐
naturereserves
Thepathfollowstheriverclosely,occasionally______roundaclumpoftrees.
Afableisadidactictalefocusonasinglecharactertrail.
Theincreaseinleisuretime,thehigherstandardofliving,theavailabilityofcarstoawiderrangeofthepopulationand,pe
Fortheexecutiveproducerofanetworknightlynewsprogramme,theworkdayoftenbeginsatmidnightasminedidduringsevenye
Biologistshaveascertainedthatspecializedcellsconvertchemicalenergyintomechanicalenergy.
ProfessorBrightlikestorambleduringherlectures.
TheministryannouncedataStateCouncilInformationOfficepressconferenceonAugust11that47medicalteams,with779membe
Nobodyknowsforsurehowmuchthesefreeofficialbanquetshavecostthepeople,butitmusthavereachedon______figure.(astro
Aftertakingoffice,China’sPrimeMinister,ZhuRongji,triedhisbesttopromotethenew______policies.
随机试题
汽车工业是典型的规模经济型、_______型产业,具有投入大、产出大的特点。
A.复制B.转录C.逆转录D.翻译DNA为模板指导合成RNA的过程
A.类风湿关节炎B.强直性脊柱炎C.新生儿溶血症D.血清过敏性休克E.接触性皮炎属于I型超敏反应的疾病是
甲施工企业承建的办公楼项目已经交付使用,发包人仍拖欠部分工程款未予支付。甲在未与任何人协商的情况下,擅自将办公室楼部分空余写字间卖给丙公司,则该买卖合同()。
某公司2013年6月30日银行存款日记账余额为149300元,银行发来的对账单余额为162500元。经核对发现以下未达账项:(1)委托银行代收的销货款8000元,银行已收到入账,但公司尚未收到银行收款通知书。(2)公司于月末交存银行的转账支票1640
根据我国《技术进出口管理条例》,判断技术进出口的标准是( )。
某单位提出单位节能减排的A、B、C三种方案,其中开车上班的员工都选择了C方案,坐地铁上班的员工都选择了B方案,坐公交车上班的员工中没人选C方案,坐地铁的员工都还没有驾照,王先生坐公交车上班同时也没有驾照。由此可以推出:
关于2004年《宪法修正案》,下列说法错误的是()。
建设单位、承建单位和监理单位在质量控制方面的关系是怎样的?监督和检查承接单位质量保证体系的主要内容是什么?
数据库定义语言(DDL)定义数据库的全局逻辑数据结构,局部逻辑数据结构和【】。
最新回复
(
0
)