I've studied various aspects of play behavior in a wide variety of nonhuman animals (animals) for decades, focusing mostly on members of the "dog family" (canids), while some of my students have ...

Anyone who has ever chucked a tennis ball in the general vicinity of a border collie knows that some animals take play very seriously—the intense stare, the tremble of anticipation, the apparent joy ...

We hope our cover story this month brings you as much joy reading it as we have had producing it. The author, behavioral ecologist Caitlin O’Connell, has what sounds like one of the best jobs on Earth ...