Crayfish take more risks while on antidepressants, study shows

Washington: Crayfish exposed to antidepressants via contaminated water behave more "boldly," emerging from hiding quicker and spending longer looking for food, a study said Tuesday.

The paper, published in the journal Ecosphere, highlights the unintended impacts human medicines can have in aquatic environments, as they alter food web dynamics and ecosystem processes. Previous research on the subject involved injecting the animals with antidepressants -- but the dose would have likely been higher than what they would have encountered naturally.