Gerry Ellis / Timber Wolf (Canis lupus) portrait of four month old pup, Oregon Zoo, Portland, Oregon

Gerry Ellis / Jaguar (Panthera onca) fur, close-up of patterned detail, Washington Park Zoo, Portland, Oregon

Gerry Ellis / Hartmann's Mountain Zebra (Equus zebra hartmannae) close up of black and white stripes on belly, native to southwestern Africa

Gerry Ellis / Domestic Cat (Felis catus) with songbird, Portland, Oregon

Gerry Ellis / African Lion (Panthera leo) portrait of male yawning, Washington Park Zoo, Portland, Oregon

Gerry Ellis / Chimpanzee (Pan troglodytes) male portrait, Washington Park Zoo