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2006年NPR美国国家公共电台四月-Large Sea Lion Population Threatens Fishi

Rene Montagne: And here on the West Coast, the sea lion population has quadrupled since hunting stopped some 30 years ago. But fishermen are lobbying for a return of those days. Tom Banse explains. Tom Banse: A clump of California sea lions is soaki

发表于:2019-01-08 / 阅读(190) / 评论(0) 分类 2006年NPR美国国家公共电台

科学美国人60秒 SSS 狮子保护区不利于保护长颈鹿

Lion Conservation Challenges Giraffe Protection The giraffe is an icon of the African savannah. The lion is the top predator of the ecosystem. Both animals face uncertain futures, and both are subjects of intense, ongoing conservation work. Now a stu

发表于:2019-02-13 / 阅读(109) / 评论(0) 分类 2018年科学美国人2月

科学美国人60秒 SSS Cut Road Deaths with Mountain Lions

Are you afraid of sharks? What about snakes or spiders? Put those fears aside: because in the U.S. youre far more likely to be killed or injured by a deer bounding across the road. Bambi and his kind cause more 200 humans deaths each year, plus some

发表于:2019-02-14 / 阅读(111) / 评论(0) 分类 2016年Scientific American(八)月
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