A young Chimpanzee enjoying a snack at the St. Louis Zoo.

Nikon D800 w/Nikkor VR 28-300 f/3.5-5.6G @ 300mm, f5.6, 1/100s, ISO 3200. Cropped

Technically challenging in that it was shot through a glass viewing window with a large crowd gathered...so I had to stand several feet away from the glass.