Definition:The tendency of unrelated animals and plants to evolve superficially similarcharacteristics under similar environmental conditions.趨同qū tóng由于生活習(xí)性或環(huán)境相似,導(dǎo)致親緣關(guān)系較遠(yuǎn)的生物獲得形態(tài)相似或功能相同的特征,如翼龍、鳥(niǎo)類和蝙蝠的翅膀...[繼續(xù)閱讀]

    Definition: Cope’s rule states that population lineages tend to increase in body size overevolutionary time. While the rule has been demonstrated in many instances,it does not hold trueat all taxonomic levels,or in all clades. Larger body size is associat...[繼續(xù)閱讀]

    Definition: A coprolite is fossilized animal dung.糞化石fèn huà shí指石化的脊椎動(dòng)物的排泄物化石。Origin: Fossil dung,1829,from copro-+-lite,from French,for -lithe,from Greek lithos“stone.”Example:In the past two or three decades,paleo parasitology has developed very quickl...[繼續(xù)閱讀]

    Definition: Rock material formed from consolidated mud or sediment that filled a holloworganic structure,such as a fossil shell. The fossil formed after dissolution of the mold.內(nèi)核nèihé指生物遺體中空部分的充填物,如雙殼類和腕足類常形成內(nèi)核化石,其表面為外殼的內(nèi)模...[繼續(xù)閱讀]

    Definition:危機(jī)先驅(qū)種wēi jī xiān qū zhòng新生于大滅絕期間的高壓力災(zāi)變環(huán)境并延續(xù)至復(fù)蘇期和輻射期的物種,后來(lái)成為生物復(fù)蘇與輻射的源泉之一。crisis:a time of great danger,difficulty or uncertainty when problems must be solved orimportant decisions m...[繼續(xù)閱讀]

    Definition: A crown group is a group consisting of living representatives,and theirancestors,back to the most recent common ancestor of that group.冠群guān qún一個(gè)共同祖先及其所有后裔組成的單系群,即冠部類群。形成于一次分支發(fā)生事件,其識(shí)別依據(jù)是共同衍征。...[繼續(xù)閱讀]

    Definition:A theory of organic evolution claiming that new species arise and are perpetuatedby natural selection.達(dá)爾文主義dá ěr wén zhǔ yì由達(dá)爾文創(chuàng)建的關(guān)于生物界演化一般規(guī)律的學(xué)說(shuō),以自然選擇學(xué)說(shuō)為核心。Origin:1864,from Charles Darwin (1809-1882),whose major...[繼續(xù)閱讀]

    Definition:The phrase Dead Clade Walking refers to the fact that some clades(groups)oforganisms which survive mass extinctions either become extinct a few million years after themass extinction or fail to recover in numbers and diversity.死支漫步sǐ zhī màn bù...[繼續(xù)閱讀]

    Definition:The existence of two forms of individual within the same animal species(independent of sex differences).雙形現(xiàn)象shuāng xíng xiàn xiàng指一個(gè)種具有兩種不同特征類型的現(xiàn)象,如雌雄個(gè)體的特征不同,有孔蟲(chóng)的顯球型和微球型明顯不同。Example:Pick two ...[繼續(xù)閱讀]

    Definition:The act of dispersing or diffusing something.散布sàn bù生物由一地向另一地的遷徙擴(kuò)散活動(dòng)。Origin:1821;see disperse+-alExample:Within the range of 25 m,the distance and direction of pollen dispersal could affect FGFsignificantly (P<0.01),and FGF generally tended...[繼續(xù)閱讀]