Antidepressants in waterways make crayfish braver and more prone to getting eaten

BREVARD COUNTY, Fla. – Crayfish on antidepressants act a bit bizarre, leaving their hiding places and boldly going where crayfish don't normally go, scientists have found. 

A new study led by the University of Florida suggests that antidepressants that get into waterways are making crayfish too daring at times, putting the freshwater crustaceans at increased risk from predators, with uncertain long-term ecological consequences.