Image: greenmuseum.org/c/vban
'In 1995, a group of Minnesota school children on a biology field trip were shocked by finding dozens of misshapen Northern Leopard frogs, Rana pipiens. ... [T]he Minnesota Pollution Control Agency and the federal Environmental Protection Agency began a statewide survey. Early results exhibited a malformation rate as high as 80% in some ponds and lakes.' (read more at greenmuseum)
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