• 1.2万年前并无先进文明出现

    17-06-04 Graham Hancock is an audacious autodidact who believes that long before ancient Mesopotamia, Babylonia and Egypt there existed an even more glorious civilization. One so thoroughly wiped out by a comet strike around 12,000 years ago that nearly all...

  • 秃鹰对生态环境的重要性

    16-05-06 Vultures. Cartoon characters in parched deserts often wish them to disappear, since circling vultures are a stereotypical harbinger of death. But, joking aside, vultures in some parts of the world are in danger of disappearing. And according to a ne...

  • 气候变化与进化缓慢导致鱼龙灭绝

    16-03-09 Ichthyosaurs - shark-like marine reptiles from the time of dinosaurs - were driven to extinction by intense climate change and their own failure to evolve quickly enough, according to new research by an international team of scientists. The study pr...

  • 城市供养着相当多数量的濒危物种

    15-12-08 The earth is facing a catastrophic species extinction crisis. The dominant approach to conservation has been to focus on protecting pristine environments, but new research from Australia demonstrates that on average, urban environments contain dispr...

  • 物种大灭绝可加速进化

    15-08-13 A computer science team at The University of Texas at Austin has found that robots evolve more quickly and efficiently after a virtual mass extinction modeled after real-life disasters such as the one that killed off the dinosaurs. Beyond its implic...

  • 2.6亿年前大卡鲁曾发生物种灭绝事件

    15-07-10 An international team led by researchers from the Evolutionary Studies Institute (ESI) at the University of the Witwatersrand, Johannesburg, has obtained an age from rocks of the Great Karoo that shed light on the timing of a mass extinction event t...

  • 人类面临第六次大规模物种灭绝

    15-06-24 There is no longer any doubt: We are entering a mass extinction that threatens humanity's existence. That is the bad news at the center of a new study by a group of scientists including Paul Ehrlich, the Bing Professor of Population Studies in biolo...

  • 海洋酸化造成某些软体动物的灭绝

    15-05-12 New research, led by the University of Southampton, has questioned the role played by ocean acidification, produced by the asteroid impact that killed the dinosaurs, in the extinction of ammonites and other planktonic calcifiers 66 million years ago...

  • 甲虫的多样性是由于其低灭绝率

    15-03-20 Today's rich variety of beetles may be due to an historically low extinction rate rather than a high rate of new species emerging, according to a new study. These findings were revealed by combing through the fossil record. Much of the work to under...

  • 软骨鱼类未来几十年濒临灭绝

    14-01-24 One quarter of the world's cartilaginous(软骨的) fish, namely sharks and rays, face extinction within the next few decades, according to the first study to systematically and globally assess their fate. The International Union for Conservation of...