Are cavers spreading lethal bat disease?

The white fungus that appears on bats' noses and wings — so-called white-nose syndrome — has killed more than a half-million bats over the past three winters, but scientists had not been able to figure out how the fungus got into the bat caves and why it spread.

Now, they have big clue: Humans, specifically cavers, who "may be spreading the causative agent."

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Photo Credit: Nancy Heaslip, New York Dept. of Environmental Conservation
Little brown bats with white-nose syndrome, New York