• 地球的历史与进化

    12-05-04 In classical mythology(神话) , the cypress(柏树) tree is associated with death, the underworld and eternity. Indeed, the family to which cypresses belong, is an ancient lineage of conifers(松柏类) , and a new study of their evolution affords a...

  • 吃肉缩减了人类的哺乳期

    12-04-23 Carnivory is behind the evolutionary success of humankind. When early humans started to eat meat and eventually hunt, their new, higher-quality diet meant that women could wean(使断奶) their children earlier. Women could then give birth to more ch...

  • 产卵加速了恐龙的灭亡

    12-04-19 Their reproductive strategy spelled the beginning of the end: The fact that dinosaurs laid eggs put them at a considerable disadvantage compared to viviparous(胎生的) mammals. Together with colleagues from the Zoological Society of London, Daryl C...

  • 有些动物为何能更长寿

    12-03-30 Scientists at the University of Liverpool have developed a new method to detect proteins associated with longevity, which helps further our understanding into why some animals live longer than others. The team looked at the genome of more than 30 ma...

  • 足骨化石开启人类进化新认识

    12-03-29 Scientists have obtained a fascinating new insight into the evolution of humans and our ability to walk. 科学家对于人类的进化以及直立行走的能力有了全新的认识。 The eight elements are all from the forefoot It comes from the fossilised bones of a foot...

  • 340万年前两种人类祖先曾同时存在

    12-03-29 A team of scientists has announced the discovery of a 3.4 million-year-old partial foot from the Woranso-Mille area of the Afar region of Ethiopia. The fossil foot did not belong to a member of Lucy's species, Australopithecus afarensis, the famous...

  • 双髻鲨遭遇双重困境

    12-03-27 Identity confusion between a new, yet unnamed shark species, originally discovered off the eastern United States by Nova Southeastern University Oceanographic Center (NSU-OC) researchers, and its look-alike cousin -- the endangered scalloped(扇形的...

  • 科学家给两种新角龙命名

    12-03-13 Two new horned dinosaurs have been named based on fossils collected from Alberta, Canada. The new species, Unescopceratops koppelhusae and Gryphoceratops morrisoni, are from the Leptoceratopsidae family of horned dinosaurs. The herbivores(食草动物...

  • 甲壳类动物在北半球更繁盛

    12-03-05 Freshwater ecosystems in northern regions are home to significantly more species of water fleas than traditionally thought, adding to evidence that regions with vanishing waters contain unique animal life. The new information on water fleas -- which...

  • 保护鸟类免受气候变化影响

    12-03-05 Scientists from PRBO Conservation Science and the Department of Fish and Game have completed an innovative study on the effects of climate change on bird species of greatest concern. This first-of-its-kind study prioritizes which species are most at...