Little Joe gets along well with the other gorillas, especially Okie. Little Joe and Okie have been together since they were young, and they moved to Franklin Park together. He is curious and intelligent. He has proven the easiest gorilla to train and the quickest learner.

Little Joe is the largest male of the Franklin Park Zoo gorillas. Even though he is so large, he is very gentle and patient with all of the gorillas, especially Kimani. He likes juice of all kinds including apple, cranberry and grape.