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Dave Slager on Twitter: "American and Northwestern crows began the speciation process at least once, but didn't finish it...
American and Northwestern crows began the speciation process at least once, but didn't finish it. When their ranges came back together, they resumed interbreeding. Can't tell American and Northwestern crows apart? Don't feel bad, because neither can they. https://www.biorxiv.org/content/early/2018/12/10/491654
twitter  biorxiv  birds  research  science  genetics  crows  biology  pacificnorthwest  americancrow  northwesterncrow  @dslager  daveslager 
11 weeks ago by coslinks

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