As an avid naturalist, Brent is a member of the Society of Animal Artists and has created sculptures of numerous of birds and mammals; some of these are large bronze sculptures which he has donated for his young patients and other children to enjoy in the San Diego Zoo and San Francisco Zoo.
Citizens Lobbying for Animals in Zoos (CLAZ) is community based organization lobbying to improve conditions for the animals in San Francisco Zoo.
In May, 2011, the San Francisco Zoo accepted two such animals, both are male California Sea Lions; named Silent Knight and Henry.
San Francisco | San Diego | San Salvador | San Antonio | San Pedro Sula | San Juan | San Diego Padres | San Francisco Giants | San Sebastián | San Francisco 49ers | San Francisco Chronicle | San Francisco Museum of Modern Art | San Francisco Bay Area | University of California, San Diego | San Jose | San José | San Francisco Bay | San Francisco Opera | San Marino | San Lorenzo | San José, Costa Rica | San Miguel de Tucumán | San Fernando Valley | San Diego Chargers | San Miguel | San Francisco Symphony | San Diego State University | Grand Theft Auto: San Andreas | Francisco Goya | University of California, San Francisco |
The museum has the largest collection of different species of live rattlesnakes in the world, which are presented in recreated habitats, and claims to host more species than the Bronx Zoo, the Philadelphia Zoo, the National Zoo in Washington, D.C., the Denver Zoo, the San Francisco Zoo, and the San Diego Zoo combined.