Scientists have long focused on quantifying fear and other negative emotions in animals. Now they’re trying to measure ...

Add Yahoo as a preferred source to see more of our stories on Google. "Having an impact is what brings me joy," Ron exclusively told Good Housekeeping over email about his work on Donkey King."Donkeys ...

Joy—fleeting woo-hoo moments like "catching the perfect wave"—is felt by many diverse animals, and researchers want to know ...