In the United States, heat waves break out every summer. While people can jump in their pools, go to the beach, hit the lake, or engage in other activities that keep them cool, animals at zoos do not ...

Columbus Zoo staff employ various methods to keep animals cool during summer heat, including ice treats, shade and pools. An Animal Observations Program helps staff understand animal behavior and ...

Around 11 a.m. on a recent Thursday, I found myself feeding a stalk of celery to a several-hundred-pound giant tortoise. He and his prehistoric-looking brethren moved at a glacial pace, inching toward ...