In the 1890s, settlers crossed the Rocky Mountains seeking new opportunities -- and bearing frogs. A new study draws a link between that introduction of American bullfrogs (Rana catesbeiana) to the western half of the United States with the spread of a fungus deadly to amphibians. The work highlights the catastrophic results of moving animals and plants to new regions.
from Latest Science News -- ScienceDaily https://ift.tt/2rmACbs
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