• 幼年时期的大白鲨是笨拙的猎手

    10-12-03 The jaws of adolescent great white sharks may be too weak to capture and kill large marine mammals, according to a new study published in the Journal of Biomechanics(生物力学) by an international team of scientists. The researchers also found that...

  • 生物多样性丧失的生态效应被低估

    10-12-01 The risk of dying from a heat wave is highest when heat waves occur early in the summer and are hotter and longer than usual, according to a Yale study published in the journal Environmental Health Perspectives (EHP). During the first heat wave of a...

  • 西班牙75%的公园存在外来物种逃脱的危险

    10-11-24 Lions, bears, monkeys, crocodiles, parrots and iguanas(美洲蜥蜴) may seem inoffensive at first glance(乍一看) when they're behind bars in zoos. But some exotic species can escape and become invasive species. This has been confirmed by a scientif...

  • 玉米基因组相互差异很大

    10-11-24 Most living plant and animal species have a certain, relatively small, amount of variation in their genetic make-up. Differences in height, skin and eye color of humans, for example, are very noticeable(显而易见的,显著的) , but are actually the c...

  • 球状肥料对土壤污染相对较小

    10-11-18 There is considerable amount of uncertainty concerning the environmental impacts that animal hormones have on surface water. Higher concentrations of hormones in waterways have been found to cause physiological and sexual impairment(损伤) in fish...

  • 哥伦比亚发现新品种青蛙

    10-11-17 A search for frogs believed to be extinct has instead led scientists to discover some new ones. 科学家们在搜寻可能已经灭绝的青蛙的时候意外发现一些新品种。 Life without larvae: this tiny toad apparently needs no tadpole stage Three species hitherto(...

  • 早期蜥脚类恐龙完整骨架被发现

    10-10-29 Scientists have discovered in China the first complete skeleton of a pivotal(关键的,中枢的) ancestor of Earth's largest land animals the sauropod(蜥脚类动物) dinosaurs. The new species, tentatively(暂时地) dubbed Yizhousaurus sunae, lived on...

  • 越来越多的物种濒于灭绝

    10-10-27 One fifth of animal and plant species are under the threat of extinction, a global conservation study has warned. 一项全球环境保护研究警告,五分之一的动物和植物处于灭绝的边缘。 Some 13% of birds qualify for inclusion on the Red List Scientists who c...

  • 菲律宾可能藏有更多独特的鸟类

    10-10-21 Recent work by Dr. David Lohman, assistant professor of biology at The City College of New York, suggests the Philippines, considered by biologists to be a biodiversity hotspot, could have more unique species of birds than previously thought. If tha...

  • 豹身上为何会有斑点

    10-10-21 Why do leopards have rosette(莲座丛) shaped markings but tigers have stripes? Rudyard Kipling suggested that it was because the leopard moved to an environment full of trees and bushes and stripy, speckly, patchy-blatchy shadows but is there any t...