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Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
18世纪时,随着人口增长,布料需求大增,乡村纺织业得到大力发展。在此过程中,大量水坝被修建,这严重阻碍了鲑鱼等洄游鱼类的迁徙,使得它们的产卵地大幅减少。即便中世纪有法规尝试保护鱼类,但效果并不理想。早在11世纪,法国就开始了鱼塘养殖,这虽然保障了精英 ...
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