Scientists look at hangers-on amid mass die-off of bats

FILE - In this Jan. 27, 2009 file photo, Ryan von Linden, left, photographs hibernating bats in an abandoned mine, while Dennis Wischman, center, and Lisa Masi take notes in Rosendale, N.Y. Biologists feared some bat species would become extinct when the mysterious "white-nose" fungus was first noticed in some caves in upstate New York. The populations of little browns appear to have stabilized in some locations in upstate New York and Vermont, the region where dead bats were found starting in 2006. (AP Photo/Mike Groll, File)