Dr. David Kimbro and Dr. Randall Hughes investigate a new idea: can crabs hear? When researchers have looked at fear in marine invertebrates, they have concentrated on chemical cues emitted from predators.  Our researchers became intrigued by a new idea, that crabs might hear predators as well.  They conducted experiments to determine whether or not mud crabs could hear, and whether those sounds had an effect on the crabs. Students will be shown that science is constantly evolving as new information is discovered. This video also shows how our researchers explore the effects this new information has on their studies.