Some of Britain's most endangered wildlife, from red squirrels to native crayfish, are vanishing from the countryside at an alarming rate, a report warns.
英国的一项报告表明该国大多数濒临灭绝的野生物种,从红松鼠到当地小龙虾,正在以惊人的速度消失。
This is nearly 1,000 times the "natural" or "background" rate and, say many biologists, is greater than anything the world has experienced since the vanishing of the dinosaurs nearly 65m years ago.
许多生物学家表示,这个速度几乎1000倍于“自然”或“背景”速率,而且是自6500万年前恐龙消失以来,世界经历的最大一件事。
Some of Britain's most endangered wildlife - from red squirrels to native crayfish - are vanishing from the countryside at an alarming rate, a report warns.
英国的一项报告表明该国大多数濒临灭绝的野生物种——从红松鼠到当地小龙虾——正在以惊人的速度消失。
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