Two new studies on the environmental impact of transgenic American chestnut trees provide evidence that the trees have no harmful effects on germinating seeds, beneficial fungi, or larval frogs that ...
FILE - This Wednesday, Oct. 10, 2012 photo shows an American chestnut tree on Traylor Renfro's mountaintop retreat in Grassy Creek, N.C. After the species was devastated by an Asian blight in the ...
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