Four Interlaced Horses, Safavid period, Iran, early 17th Century

Cow and Trees by Bernard Essers, 1931

Sowing the Seed by Bernard Essers, 1931

Gardening by Bernard Essers, 1930

Horned Owl by Samuel Jessurun de Mesquita, 1915

Cattleya Orchid and Three Hummingbirds Martin Johnson Heade, 1871

Polypus Levis Hoyle Octopus by Ewald Rubsamen from a Book on the German Deep-Sea Expedition of 1910

Design for Embroidery of Birds, Atelier Martine, 1914

On the Walrus (Trichecus rosmarus), Transactions of the Zoological Society of London by James Murie - 1872

Agnus Dei by Francisco de Zurbarán - c. 1635

The Flight into Egypt by Jean-Francois Millet - 1864

Blauschwarzer Fuchs, (Blue-Black Fox) by Franz Marc - 1911

Detail from The Garden of Earthly Delights by Hieronymus Bosch - c. 1503-04

“The muscles of man and cat compare favorably, indicating common origins.” . Zoology. 1952.

Zoo Animal Pictograms, National Zoo Pamphlet, Washington, D. C. - 1978

Dinosaur Family Tree, The Dinosaur Book - 1951

Skeleton of Chicken, Elementary Science - 1908

The Cats’ Rendezvous by Édouard Manet - 1868

The Monkey Antiquarian by Pierre-Louis de Surugue - 1743

New Years Card, Cheers by Gustav Kalhammer - 1911

Humorous Subject by Rudolph Kalvach - c. 1908

The Cat’s-Paw, Any Thing to Get Chestnuts by Thomas Nast - July 18, 1892

Meekness by Eustache Le Sueur - 1650