'Irreplaceable' Colombian bird collection at risk

Under a cracked and leaky ceiling, Andres Cuervo works on a colorful, dead hummingbird for the ornithological collection of the National University of Colombia, the country with more bird species than any other.

Researchers create toolkit to support school safety

University of Virginia professors Dewey Cornell and Jennifer Maeng have created a toolkit that school districts may use to help keep schools safe from threats, including gun violence.