Bats are one of the smallest and most threatened mammals in the United States. The species has been hit hard by a fungus called white-nose syndrome. It first appeared in New York in 2006 and Wisconsin ...

A harp trap s strings are like fishing line, too fine for even a bat s keen echolocation to perceive. The bats strike the strings and fall into a plastic trough. By 9:30 p.m. bats were falling into ...