I bought a new Nikon 70-300mm f/4.5-5.6E zoom lens, and decided to test it out by going to the Detroit Zoo and shooting some pictures of animals. I spent most of my time hanging around the polar bear pen. This female polar bear is a new addition to the Detroit Zoo, and part of a three-way trade between three zoos. She spent most of her time pacing back and forth, occasionally frolicking in what little snow was left. Photo shot with a Nikon D7200 and 70-300mm f/4.5-5.6 lens.