radical separation 原文是这样的:Thousands of years ago a powerful drought dried up Brazil's Madeira River,causing a "radical separation" as dolphin populations were caught on different sides of the newly created rapids,said researcher Manuel

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radicalseparation原文是这样的:ThousandsofyearsagoapowerfuldroughtdriedupBrazil''sMadeiraRiver,causinga"radi

radical separation 原文是这样的:Thousands of years ago a powerful drought dried up Brazil's Madeira River,causing a "radical separation" as dolphin populations were caught on different sides of the newly created rapids,said researcher Manuel
radical separation
原文是这样的:
Thousands of years ago a powerful drought dried up Brazil's Madeira River,causing a "radical separation" as dolphin populations were caught on different sides of the newly created rapids,said researcher Manuel Ruiz-Garcia.《New,"Chubbier" River Dolphin Species Found in Bolivia》
似乎是和生物起源有关的一种隔离,但是怎么翻呢……

radical separation 原文是这样的:Thousands of years ago a powerful drought dried up Brazil's Madeira River,causing a "radical separation" as dolphin populations were caught on different sides of the newly created rapids,said researcher Manuel
种族差异

对,种族差异