Definition:The tendency of unrelated animals and plants to evolve superficially similarcharacteristics under similar environmental conditions.趋同qū tóng由于生活习性或环境相似,导致亲缘关系较远的生物获得形态相似或功能相同的特征,如翼龙、鸟类和蝙蝠的翅膀...[继续阅读]

    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...[继续阅读]

    Definition: A coprolite is fossilized animal dung.粪化石fèn huà shí指石化的脊椎动物的排泄物化石。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...[继续阅读]

    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.内核nèihé指生物遗体中空部分的充填物,如双壳类和腕足类常形成内核化石,其表面为外壳的内模...[继续阅读]

    Definition:危机先驱种wēi jī xiān qū zhòng新生于大灭绝期间的高压力灾变环境并延续至复苏期和辐射期的物种,后来成为生物复苏与辐射的源泉之一。crisis:a time of great danger,difficulty or uncertainty when problems must be solved orimportant decisions m...[继续阅读]

    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一个共同祖先及其所有后裔组成的单系群,即冠部类群。形成于一次分支发生事件,其识别依据是共同衍征。...[继续阅读]

    Definition:A theory of organic evolution claiming that new species arise and are perpetuatedby natural selection.达尔文主义dá ěr wén zhǔ yì由达尔文创建的关于生物界演化一般规律的学说,以自然选择学说为核心。Origin:1864,from Charles Darwin (1809-1882),whose major...[继续阅读]

    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...[继续阅读]

    Definition:The existence of two forms of individual within the same animal species(independent of sex differences).双形现象shuāng xíng xiàn xiàng指一个种具有两种不同特征类型的现象,如雌雄个体的特征不同,有孔虫的显球型和微球型明显不同。Example:Pick two ...[继续阅读]

    Definition:The act of dispersing or diffusing something.散布sàn bù生物由一地向另一地的迁徙扩散活动。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...[继续阅读]