This radio broadcast features an interview with a herpetologist who studies the native toads of the Sonoran Desert and an invasive species from the east, the American bull frog. The herpetologist, Dr. Cecil Schwalbe,...

This marine snail (Rapana venosa) from Asia was discovered in the Chesapeake Bay in 1998. VIMS scientists report their research on this exotic species, how its biology and life cycle allowed it to invade US waters via...