Patrick, a 23-year-old gorilla, is leaving the Dallas Zoo and moving to a new home in South Carolina. He has never gotten along well with other gorillas. (Dallas Zoo/Associated Press)

A 430-pound gorilla who has spent the past 18 years at the Dallas Zoo will be moved to a South Carolina facility for a more solitary existence.

The Dallas Zoo in Texas on Monday announced the planned transfer of 23-year-old Patrick to the Riverbanks Zoo and Garden in Columbia.

Dallas Zoo officials for years tried to create social relationships for Patrick. Those efforts were never successful. Patrick either wasn’t interested in the female gorillas or he acted aggressively toward them.

Zoo veterinarian Lynn Kramer says it’s clear that Patrick prefers to live by himself. Dallas Zoo officials said they will concentrate on working with other male gorillas in a species survival plan.

No move date was announced for Patrick, who was born in New York at the Bronx Zoo. His mother did not take care of him, so he was sent to the Toronto Zoo, then to Texas.

— Associated Press