Above, Greenwald uses traps like the ones seen here to catch a variety of salamanders in areas with moist soil and nearby creeks. Below, after catching creatures in the traps, Greenwald will take measurements of the animals caught to analyze the health of forest and riverbed ecosystems.

Katy & Hellbender: Ohio State doctoral student Katherine Greenwald, seen here with the hellbender salamander, is studying how human disturbance to the environment affect different types of salamanders. Hellbenders are the third largest aquatic salamander in the world, weighing 3 to 5 pounds on average.