Elevated stress levels for seals living in fear of sharks


Today’s Video of the Day comes from the University of Miami and features a look at the stress levels of animals who live under constant fear of predation.

While a little stress might keep you on your toes, prolonged exposure to stress hormones like cortisol have been linked to long term health problems.

A team of researchers set out to test the Predation Stress Hypothesis, which suggests that animals living under risk of attack experience elevated levels of stress hormones.

By Rory Arnold, Earth.com Staff Writer

Video Credit: University of Miami, Footage provided by Discovery Channel/Airjaws: Night Stalker, Jeff Kurr/Shark Entertainment Edit: Waterlust