Since 2007, infections by a previously unrecognized, perhaps imported fungus killed an estimated 1 million bats in North America

David S. Blehert, Jeffrey M. Lorch, Anne E. Ballmann, Paul M. Cryan, and Carol U. Meteyer

Banning nonessential antibiotic uses in food animals is intended to reduce pools of resistance genes

Carol Cogliani, Herman Goossens, and Christina Greko

Unknown to us 25 years ago, this remarkable and abundant organism performs a sizable part of the planet's photosynthesis

Sallie W. Chisholm