@thebronxzoo: Enjoy this video of our five Père David’s deer fawns in full-on frolic mode. Frolicking isn’t just for fun. It helps the fawns build muscle, improve coordination, and lets them practice the maneuvers needed to escape predators. The fawns are also practicing important social behaviors, such as mock sparring which help establish their place in the herd’s social hierarchy. #bronxzoo #peredavidsdeer