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colorfule poision frogs

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Colorful poison frogs in the Amazon owe their great diversity to ancestors that leapt into the region from
the Andes Mountains several times during the last 10 million years, a new study from The University of
Texas at Austin suggests. This is the first study to show that the Andes have been a major source of
diversity for the Amazon basin, one of the largest reservoirs of biological diversity on Earth. The finding
runs counter to the idea that Amazonian diversity is the result of evolution only within the tropical forest
itself. "Basically, the Amazon basin is a 'melting pot' for South American frogs," says graduate student
Juan Santos, lead author of the study. "Poison frogs there have come from multiple places of origin,
notably the Andes Mountains, over many millions of years. We have shown that you cannot understand
Amazonian biodiversity by looking only in the basin. Adjacent regions have played a major role."
language Recommended age: 4 years old
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Mohsin Khan
Mohsin Khan
United States
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