智科眼

请选择以下任意方式登录

已有帐号?

验证码登录

微信登录

忘记密码
未收到验证码?
注册

微信注册

智科眼: 双语看懂新世界
演化 6926
African(非洲) apes() adapted(适应) to(to) living(生活) on(on) the ground(地面),(,) a(a) finding(发现) that(that) indicates(表明) human(人类) evolved(进化) from() an(an) ancestor(祖先) not() limited() to(to) tree(树木) or() other(其他) elevated() habitats(栖息地).(.) The analysis(分析) adds() a(a) new(新的) chapter() to(to) evolution(进化),(,) shedding() additional() light() on(on) what(what) preceded(之前) human(人类) bipedalism(双足行走).(.)
African(非洲) apes() adapted(适应) to(to) living(生活) on(on) the ground(地面),(,) a(a) finding(发现) that(that) indicates(表明) human(人类) evolved(进化) from() an(an) ancestor(祖先) not() limited() to(to) tree(树木) or() other(其他) elevated() habitats(栖息地).(.) The analysis(分析) adds() a(a) new(新的) chapter() to(to) evolution(进化),(,) shedding() additional() light() on(on) what(what) preceded(之前) human(人类) bipedalism(双足行走).(.)
"(")Our(我们) unique(独特) form(形式) of(of) human(人类) locomotion(运动) evolved(演变) from() an(an) ancestor(祖先) that(that) moved(移动) in(in) similar(类似) ways() to(to) the living(生活) African(非洲) apes(猩猩)()chimpanzees(黑猩猩),(,) bonobos(倭黑猩猩),(,) and() gorillas(大猩猩),"(,") explains(解释) Thomas(托马斯) Prang(普朗),(,) a(a) doctoral(博士) candidate(候选人) in(in) New() York(纽约) University(大学)'s('s) Department(部门) of(of) Anthropology(人类学) and() the author(作者) of(of) the study(研究),(,) which(which) appears(出现) in(in) the journal(期刊) eLife.(eLife.) "In("In) other() words(),(,) the common(共同) ancestor(祖先) we(我们) share() with(with) chimpanzees(黑猩猩) and() bonobos() was(was) an(an) African(非洲) ape() that(that) probably(可能) had(had) adaptations(适应) to(to) living() on(on) the ground(地面) in(in) some(某种) form(形式) and(and) frequency(频率).(.) "(")
The way(方式) that(that) humans(人类) walk(行走)()striding(跨越) bipedalism(双足)—is(—is) unique(独一无二) among(among) all(所有) living() mammals(哺乳动物),(,) an(一个) attribute(属性) resulting() from(from) myriad() changes over time(换向时间).(.)
"(")The human body(人体) has(has) been(been) dramatically(大幅) modified() by(by) evolutionary processes(进化过程) over(over) the last(过去) several() million(百万) years() in(in) ways(方式) that(that) happened() to(to) make() us(我们) better(更好) walkers(步行者) and() runners(跑步者),"(,") notes(指出) Prang(普朗).(.)
Much() of(of) this(这种) change(变化) is(is) evident() in(in) the human() foot(),(,) which(which) has(has) evolved(演变) to(to) be(be) a(a) propulsive(推进) organ(器官),(,) with(with) a(a) big() toe(脚趾) incapable(无法) of(of) ape()-()like(一样) grasping(抓住) and(and) a(a) spring(弹簧)-()like(),(,) energy-saving(节能) arch(拱门) that(that) runs() from() front() to(to) back().(.)
These(These) traits(特征) raise(提出) a(a) long(长期)-()studied(研究),(,) but() not() definitively(明确) answered(回答),(,) question(问题):(:) From() what(what) kind() of(of) ancestor(祖先) did(did) the human(人类) foot() evolve(进化)?(?)
In(In) the eLife(eLife) work(工作),(,) Prang(普朗),(,) a(a) researcher(研究人员) in(in) NYU's(NYU's) Center(中心) for(for) the Study(研究) of(of) Human(人类) Origins(起源),(,) focused(专注) on(on) the fossil species(化石种) Ardipithecus(Ardipithecus) ramidus(ramidus) ('((')Ardi(Ardi)'),('),) a(a) 4.4(4.4) million(百万)-()years-old(年龄) human(人类) ancestor(祖先) from(来自) Ethiopia(埃塞俄比亚)()more(more) than() a(a) million() years older(年龄) than() the well-known(著名) 'Lucy'('Lucy') fossil(化石).(.) Ardi()'s('s) bones(骨头) were(were) first(首次) publicly(公开) revealed() in(in) 2009(2009) and(and) have(have) been(been) the subject(主题) of(of) debate(辩论) since then(以后).(.)
In(In) his() research(研究),(,) Prang(普朗) ascertained(确定) the relative(相对) length(长度) proportions(比例) of(of) multiple(多个) bones(骨骼) in(in) the primate(灵长类动物) foot() skeleton(骨骼) to(to) evaluate(评估) the relationship(关系) between(between) species(物种)'(') movement(运动) ((()locomotion(运动))()) and(and) their(their) skeletal(骨骼) characteristics(特征) ((()morphology(形态)).().) In addition(另外),(,) drawing() upon(upon) the Ardi(Ardi) fossils(化石),(,) he() used(使用) statistical methods(统计方法) to(to) reconstruct(重建) or() estimate(估计) what(what) the common(共同) ancestor(祖先) of(of) humans(人类) and() chimpanzees(黑猩猩) might(可能) have(have) looked(寻找) like().(.)
Here(这里),(,) he() found(发现) that(that) the African(非洲) apes() show(显示) a(a) clear(明确) signal(信号) of(of) being(being) adapted(适应) to(to) ground(地面)-()living(生活).(.) The results(结果) also() reveal(表明) that(that) the Ardi(Ardi) foot() and() the estimated(估计) morphology(形态) of(of) the human(人类)-()chimpanzee(黑猩猩) last(最后) common(共同) ancestor(祖先) is(is) most() similar(相似) to(to) these(these) African(非洲) ape() species(物种).(.)
"(")Therefore(因此),(,) humans(人类) evolved(进化) from() an(an) ancestor(祖先) that(that) had(had) adaptations(适应) to(to) living(生活) on(on) the ground(),(,) perhaps(可能) not() unlike() those(那些) found(发现) in(in) African(非洲) apes(),"(,") Prang(普朗) concludes(总结).(.) "(")These(These) findings(研究结果) suggest(表明) that(that) human(人类) bipedalism(双足行走) was(was) derived(来源) from(from) a(a) form(形式) of(of) locomotion(运动) similar(类似) to(to) that(that) of(of) living() African(非洲) apes(),(,) which(which) contrasts(对比) with(with) the original(原始) interpretation(解释) of(of) these(these) fossils(化石).(.) "(")
The original(原始) interpretation(解释) of(of) the Ardi(Ardi) foot() fossils(化石),(,) published(出版) in(in) 2009,(2009,) suggested(提出) that(that) its() foot() was(was) more() monkey(猴子)-()like() than() chimpanzee(黑猩猩)-() or() gorilla(大猩猩)-()like(喜欢).(.) The implication(含义) of(of) this(这种) interpretation(解释) is(is) that(that) many(许多) of(of) the features(特征) shared() by(by) living(生活) great() apes(猩猩) ((()chimpanzees(黑猩猩),(,) bonobos(倭黑猩猩),(,) gorillas(大猩猩),(,) and() orangutans(猩猩))()) in(in) their(他们) foot() and() elsewhere() must(必须) have() evolved(进化) independently(独立) in(in) each(每个) lineage(谱系)—in(—in) a(a) different(不同) time(时间) and() place(地点).(.)
"(")Humans(人类) are(are) part(一部分) of(of) the natural(自然) world() and(and) our(我们) locomotor(运动) adaptation(适应)()bipedalism(双足行走)()cannot be(不能) understood(理解) outside() of(of) its() natural(自然) evolutionary(进化) context(背景),"(,") Prang(普朗) observes(观察到).(.) "(")Large-scale(大型) evolutionary(进化) changes(变化) do(do) not(不是) seem(似乎) to(to) happen(发生) spontaneously(自发).(.) Instead(),(,) they(它们) are(are) rooted() in(in) deeper(更深层) histories(历史) revealed(揭示) by(by) the study(研究) of(of) the fossil record(化石记录).(.)
"(")The study(研究) of(of) the Ardi(Ardi) fossil(化石) shows(表明) that(that) the evolution(演变) of(of) our(我们) own(自己) ground(地面)-()living(生活) adaptation(适应)()bipedalism(双足行走)()was(was) preceded(之前) by(by) a(a) quadrupedal(四足) ground(地面)-()living(生活) adaptation(适应) in(in) the common(共同) ancestors(祖先) that(that) we(我们) share() with(with) the African(非洲) apes().(.) "(")

新闻订阅

  • 科学
  • 技术
  • 医学

新闻分享