In 1990, the founders donated it to the Zoological Society of Washington which assumed the zoo's management and fundraising endeavors.

[5] The zoo collection features exhibits concentrating on endangered species such as tigers, lemurs, wolves, reindeer, cranes, wallabies, macaws, and cougars, among others.

[8] In 2011, a 370-pound (168 km) tiger was photographed holding his paw up to the glass wall to meet the hand of a small child, appearing to play patty-cake, resulting in a picture which was picked up by news services.

In 2016, a pack of four male gray wolves was acquired.Zoo lectures, presentations and demonstrations are held throughout the day and docents are on-site to answer visitors' questions.

[11] The zoo features outreach programs to churches, and to senior citizens groups.