So they tracked down four leopard frog populations with the unique call-including one within view of the Statue of liberty-and took DNA samples.
因此，他们研究了四种具有不同叫声的青蛙种类——其中包括自由女神区域的青蛙种类，并提取了它们的DNA样本。
Ms. Goldberg has used eDNA testing to confirm the local extinction, disappearance, of a leopard frog in the American state of Idaho.
戈德堡女士使用环境DNA测试来确认美国爱达荷州的豹蛙在当地是否已经灭绝。
Ms. Goldberg has used eDNA testing to confirm the local extinction, disappearance, of a leopard frog in the American state of Idaho.
戈德堡女士使用环境DNA测试来确认美国爱达荷州的豹蛙在当地是否已经灭绝。
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