Great Bend veterinarians Dr. Mike Malone and Dr. Jackie Corbett paid a visit to Great Bend’s Brit Spaugh Zoo on Wednesday, conducting a physical examination of a male grivet monkey named Tupac.The zoo also has two female grivets, Rhonda and Acia, Zoo Curator Marge Bowen said. Their age is unknown, but zoo records show all three were purchased in 2007 from the Lolli Bros. Market in Macon, Mo.The grivet monkey, also known as the green monkey or velvet monkey, is found in the savannahs of Africa and lives to be up to 17 years old in the wild.