Not sure who is enjoying this more! One of the "residents" of Grizzly Ridge (St. Louis Zoo) interacting with visitors.

This was photographed while looking through a viewing window at another viewing window that is 30 -50 ft. away and at an angle. Fortunately it was cloudy.

Nikon D800 w/Nikkor VR 28-300mm f3.5-5.6G

@300mm, f/5.6, 1/160s, ISO 1600, with a circular polarizing filter

Technically not the greatest, but the expressions I think are price-less!