Robert S. Castellini is an accomplished financial and investment advisor who helps clients select the appropriate investment plans. Besides his career accomplishments, Robert S. Castellini is a philanthropist who supports numerous organizations, including Cincinnati Zoo & Botanical Garden, where he serves on the board of trustees.

Cincinnati Zoo & Botanical Garden is focused on the conservation of nature, the creation of knowledge, and service to the community. As part of its mandate, the Cincinnati Zoo & Botanical Garden welcomed three new male gorillas (troop), namely Pendeka (Pende), Chipua (Chip), and Kongo. The gorillas were transferred to the facility from Detroit Zoo in July 2023 as part of the Species Survival Plan (SSP) under the Association of Zoos and Aquariums (AZA) gorilla population initiative.

According to Victoria McGee, Zoological Manager of Primates, this was the first time Cincinnati Zoo was housing a bachelor troop in its long tradition of caring for gorillas. Bachelor troops are found in multiple native habitats across Central Africa and various AZA establishments. Compared to family troops, bachelor troops are known for their aggression which helps to teach all gorillas in a troop to interact appropriately and maintain their dynamic social structure, which helps to safeguard their hierarchies.

Out of 765 gorillas in various zoos worldwide, 360 gorillas are under the Gorilla SSP program. The Cincinnati Zoo has supported multiple global wild gorilla conservation projects, such as the Nouabalé-Ndoki Project in the Republic of Congo, whose highlight was the Mbeli Bai Study. Cincinnati Zoo supported the Mbeli Bai Study through documentaries, publications, and education programs to raise global awareness about gorillas and their survival.