34 Raising Oysters In the oysters were raised in much the same way as dirt farmers raised tomatoes- by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then scattered clean shells about.

发表于:2018-12-08 / 阅读(572) / 评论(0) 分类 新概念优美背诵短文50篇

[Songbird and traffic noise] It's hard to be a bird in our human-dominated world. You can barely hear yourself sing, let along hear the songs of your friends and you can forget about hearing a predator. Noise is almost everywhere. Especially noise fr

发表于:2018-12-24 / 阅读(87) / 评论(0) 分类 2016年Scientific American(九)月

In the oysters were raised in much the same way as dirt farmers raised tomatoes- by transplanting them. First, farmers selected the oyster bed, cleared the bottom of old shells and other debris, then scattered clean shells about. Next, they planted f

发表于:2018-12-30 / 阅读(100) / 评论(0) 分类 考研背诵50篇

Thankfully the bear's appetite takes to the bigger prize. Tonight, they both get a share of the spoils. Late August, and as summer slides into autumn, the land around Baikal begins its transformation. Soft and rotting wood sprouts fast-growing fungus

发表于:2019-01-22 / 阅读(118) / 评论(0) 分类 自然百科2011年

Canada Geese Taking a Winter Staycation Over the last few decades, Canada geese have been wintering further and further north, which was interesting, because the winters have gotten a little more mild over the last few years, but still its pretty col

发表于:2019-02-13 / 阅读(59) / 评论(0) 分类 2018年科学美国人2月