新东方网>英语>英语学习>英语阅读>双语新闻>时政热点>正文

2019年最怪异10项科学研究盘点:尼斯湖水怪的DNA(双语)

2019-12-30 11:53

来源:参考消息网

作者:

  吃蝾螈的植物

  The carnivorous northern pitcher plant (Sarracenia purpurea) traps unwary insects in its goblet-shaped leaves and digests the bugs for their nutrients. But earlier this year, scientists were shocked to find pitcher plants chowing down on salamanders as well. A team of researchers sampled several hundred pitcher plants in Ontario's Algonquin Provincial Park and found that about 20% of the plants contained at least one juvenile salamander, while many plants captured several of the amphibians at once. The salamanders drowned, starved or were cooked to death in the acidic pitcher fluid and, once dead, decomposed in about 10 days. The ravenous plants may gobble up as much as 5% of the bog's juvenile salamander population each year, the team estimated.

  瓶子草这种北方的肉食性捕虫草能用它的杯状叶片捕捉到不够小心的昆虫,并消化这些昆虫以吸取它们的营养。但今年早些时候,科学家们惊讶地发现瓶子草也能吞食蝾螈。一组研究人员对加拿大安大略省省立阿尔贡金公园内的数百株瓶子草进行了采样,结果发现有大约20%的瓶子草里捕获了至少一只幼年蝾螈,而且有不少瓶子草同时捕获了好几只。蝾螈在瓶子草的酸性液中被淹死、饿死或被“煮”死,而一旦死亡,它们的身体会在大约10天内分解。研究团队估计,这种贪婪的植物每年可能会吞食该沼泽内5%的幼年蝾螈。

  carnivorous [kɑːˈnɪvərəs]:adj.食肉的;肉食性的

猜你喜欢

  • 听力
  • 口语
  • 阅读
  • 娱乐
  • 词汇
  • 写作

            版权及免责声明

            凡本网注明"稿件来源:新东方"的所有文字、图片和音视频稿件,版权均属新东方教育科技集团(含本网和新东方网) 所有,任何媒体、网站或个人未经本网协议授权不得转载、链接、转贴或以其他任何方式复制、发表。已经本网协议授权的媒体、网站,在下载使用时必须注明"稿件来源:新东方",违者本网将依法追究法律责任。

            本网未注明"稿件来源:新东方"的文/图等稿件均为转载稿,本网转载仅基于传递更多信息之目的,并不意味着赞同转载稿的观点或证实其内容的真实性。如其他媒体、网站或个人从本网下载使用,必须保留本网注明的"稿件来源",并自负版权等法律责任。如擅自篡改为"稿件来源:新东方",本网将依法追究法律责任。

            如本网转载稿涉及版权等问题,请作者见稿后在两周内速来电与新东方网联系,电话:010-60908555。

            热搜关键词