首页
登录
职称英语
Few creatures on earth are as cute as the black lion tamarin, and few have a
Few creatures on earth are as cute as the black lion tamarin, and few have a
游客
2025-01-28
11
管理
问题
Few creatures on earth are as cute as the black lion tamarin, and few have as dramatic a story line. Pug-nosed and diminutive, with a comic fringe of hair, these monkeys dwell in trees in small tracts of forest in southeastern Brazil. Or they did until 1905, when they were declared extinct. No one saw a black lion tamarin again in the wild until 1970. Later, in the 1990s, some Brazilian researchers turned up a small set of isolated, inbred populations scattered over a wide region. Since that time, they have been engineering tamarin migration, doing everything they can to save the world’s most distinctive primates.
Although they are no larger than house cats, tamarins have brains big for their size and a family life organized like our own. They live in groups anchored by an adult male and adult female, along with their offspring. When a mother bears young, she usually produces twins, and although members of the group share in their upbringing, it is most often the father who carries them around in the trees, where the families feed on fruit, insects and birds’ eggs.
Unhappily for the lion tamarins, their tree-bound niche began to disappear after the Portuguese landed in Brazil and began clearing forest to make room for Rio de Janeiro, the settlements and farms. As is the case for so many threatened species, the breakup of their habitat sounded the death knell for tamarins, depriving them of the continuity of forest they require to remain abundant and safe from potential threats in any vicinity. The animals avoid predators by hardly ever coming down from the trees, so even a narrow logging road through a forest can begin the breakup by preventing them from moving from one patch of forest to another.
A simple solution was to build bridges across roads, allowing the monkeys to move from one forest to another. With some lumber and the researchers’ work, habitats that had been separated became continuous again, improving opportunities for migrating and mating. The next step was to broaden the distribution of the population. The researchers captured two families of black lion tamarins and moved them to a new forest. After a year, the moves were declared a success: Not only had 80 percent of the tamarins survived, but they had also produced new offspring. So far, so good. The researchers had learned the animals could adjust to the new habitats, even if the insects there tasted a little different or the trees were a slightly different size.
The techniques for saving species in the wild vary. Species with less stringent habitat requirements, like wild turkeys, have been rescued by moving them into new settings as well as outlawing their killing. More challenging to preserve are species that require a lot of land, like elephants, and species that have highly specific requirements for habitat and prey—like black-footed ferrets. Ultimately, as in all challenges, knowledge is power to save wild species from extinction. [br] The lumber bridges were devised to_________.
选项
A、improve chances for tamarins to meet and mate
B、connect once separated habitats for the sake of research
C、make use of some lumber cut down
D、both A and C
答案
A
解析
根据第四段第一、二句可知,答案为A“为绢毛猴相遇和交配创造了更多机会”。
转载请注明原文地址:https://tihaiku.com/zcyy/3932438.html
相关试题推荐
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Humanbeingsare_________creatures,designedtobeonthemove.A、distinctiveB、d
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
随机试题
Afriendofmineisadepartmentmanageratalargecompany.Hissecretaryr
编制监理规划正确的步骤是( )。A.项目规划目标的确认—规划信息的收集与处理—
烧伤病人无法测量血压,判断循环情况可凭()A.听心音 B.测中心静脉压
唯物辩证法认为,事物的运动、变化、发展都离不开联系。这主要表现在()。 A.事
医疗机构发现甲类传染病时,应当对病人、病原携带者予以隔离治疗、隔离期限根据医学检
患者女,65岁。有消渴病史,一周来胃脘灼痛,痛势急迫,烦躁易怒,口干且苦,舌红少
简述小学儿童社会性交往发展的特点。
药物过敏性口炎时机体产生的抗体是A:IgA B:IgG C:IgM D:I
(2021年真题)2020年1月1日,甲公司支付银行存款40000万元取得非关联
在传统模式的医患关系下,医生是权威,是决策者,病人服从的执行医生的决策。这种易患
最新回复
(
0
)