Tracking animals at Saguaro National Park from the DNA they leave behind
Emerging science helps researchers find rare aquatic species and what threatens them
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Call it "Forensic Files for Frogs." Researchers at Saguaro National Park could use DNA left behind in isolated pools to track native amphibians and the invasive species that threaten them.
Species reintroduction, safety at abandoned mines, fire ecology help and a native seed bank are among projects U.S. Interior Department announces it will pay for.
