The Gladys Porter Zoo is an oasis nestled in the center of Brownsville, Texas. With 26 acres of lush tropical plants and some 1,300 animals, the Gladys Porter Zoo is known for it's successes in breeding endangered species of wildlife. The Gladys Porter Zoo is owned by the City of Brownsville and is operated by the Board of Directors of the Valley Zoological Society. Gladys Porter provides a perfect break from the beach or visits to Mexico. We had a great time on our visit there.