Most of us know to give bears a wide berth in the wild. But there are gentler wild animals, even prey, that can get very aggressive in the wrong situations.

Eunice Framm, senior keeper of barnyard animals at the Cincinnati Zoo, has taught pigs to bowl, goats to paint, and red pandas to receive vaccines. She, and all other keepers, do so through the zoo’s ...

They weren’t always barnyard animals, wild pigs were nature’s unstoppable opportunists. This breakdown explores how their digging mechanics, diet versatility, and brainpower once made them one of the ...