Vincent J. Musi. Leopard.

This captive African Leopard was photographed at the Houston Zoo for a National Geographic Magazine project on Big Cats in Crisis.

Leopards are the most widespread of big cats, found from Africa to Southeast Asia. They are classified as Vulnerable by IUCN’s Red List.

Vincent J. Musi has been a contributing photographer to National Geographic Magazine for over 25 years. He is the author of The Year of the Dogs, a book that is mostly about dogs.

Sales benefit conservation initiatives from Big Life Africa, Reteti Elephant Sanctuary and the Jane Goodall Institute's Roots and Shoots.