什么是南猿属
已灭绝的一属人类,从上新世(约始於530万年前)早期到更新世(约180万年前)之初居住於非洲地区。大部分古人类学家相信南猿属是现代人类的祖先。南猿与早期类人猿的区别在於体态直立和靠双脚行走。他们的脑容量相当小,与现存类人猿差距不大,但他们的牙齿比较接近人类。人类学家依体型把南猿区分为二︰体型较小、较轻或所谓“纤细”型的阿法南猿(A. afarensis,375万年前)和非洲南猿(A. africanus, 200~300万年前);演化後较重、较“粗壮”型的粗壮南猿(A. robustus, 100~200万年前)和鲍氏南猿(A. boisei, 175万年前)。一般认为,粗壮南猿和鲍氏南猿从纤细型人种演化而来,最後因无演化的後继者而灭绝。我们不清楚哪种纤细型南猿使人属兴起,虽然证据显示是阿法南猿。亦请参阅Hadar remains、human evolution、Lucy、Olduvai Gorge、Sterkfontein。
Australopithecus
(“southern ape”) Genus of extinct hominids that lived in southern and eastern Africa from the early Pliocene Epoch (beginning c. 5.3 million years ago) to the beginning of the Pleistocene (c. 1.8 million years ago). It is believed to be ancestral to modern human beings. The australopithecines were distinguished from the apes by their upright posture and bipedal gait. Their brains were small, not very different from those of living apes, but their teeth were more human than apelike. Three species of gracile australopithecines, A. anamensis (4.2 million years ago), A. afarensis (3.75 million years ago) and A. africanus (3 million-2 million years ago), and two species of robust australopithecines, A. robustus (2 million-1 million years ago) and A. boisei (1.75 million years ago), have been identified. Both robust species apparently evolved from the gracile species and eventually became extinct without evolutionary successors. It is not known which gracile species gave rise to the genus Homo, though the evidence suggests it was the earlier A. afarensis. See also Hadar remains, human evolution, Laetoli footprints, Lucy, Olduvai Gorge, Sterkfontein.
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仆仆道途是什么意思?
意思是:奔走于道路。形容途中劳顿。成语名字:仆仆道途成语发音:púpúdàotú成语解释:奔走于道路。形容途中劳顿。成语出处:清·严如熤《三省边防备览·策略》:“如客店必照例造报月一陈核,则仆仆道途,不胜其苦矣。”成语繁体:僕僕道途感情色彩:中性成语成语用法:作谓语;...
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燕巢卫幕是什么意思?
意思是:《孔子家语·正论》:“卫孙文子得罪于献公,居戚。公卒未葬,文子击钟焉。延陵季子适晋过戚,闻之曰:‘异哉!夫子之在此,犹燕子巢于幕也,惧犹未也,又何乐焉?君又在殡,可乎?’”后以“燕巢卫幕”比喻处境非常危险。成语名字:燕巢卫幕成语发音:yàncháowèimù成语解释:《孔...
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一反常态是什么意思?
意思是:一反:完全相反;整个儿相反;常态:平常的情态。完全和平常的态度相反。形容态度发生了极大的变化。成语名字:一反常态成语发音:yīfǎnchángtài成语解释:一反:完全相反;整个儿相反;常态:平常的情态。完全和平常的态度相反。形容态度发生了极大的变化。成语出处:郭澄...
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以玉抵乌是什么意思?
意思是:见“以玉抵鹊”。成语名字:以玉抵乌成语发音:yǐyùdǐwū成语解释:见“以玉抵鹊”。成语出处:北齐·刘昼《新论·辩施》:“昆山之下,以玉抵乌;彭蠡之滨,以鱼食犬,而人不爱者,非性轻财,所丰故也。”成语繁体:以玉抵烏感情色彩:中性成语成语用法:作谓语、定语;用于比喻句...