Fingers

Biography
When Fingers was an ape in Africa, he was separated from his mother by a poacher named James Van Dyle. Fingers was sold to the Gotham State University where he was experimented on by two zoologists. The two zoologists did illegal experiments on Fingers where it increased his intelligence when they spliced him with enhanced human DNA. Fingers started to roam the streets which caught the attention of Batman. Fingers escaped from the Tomorrow Knight and went into hiding where he suddenly started to learn about Van Dyle, who was a public hero. Fingers went looking for Van Dyle and got attacked by Batman. Fingers told Batman about Van Dyle being a poacher and how he captured his mother which prompted the Tomorrow Knight to investigate him. Fingers tracked Batman down and saved him from being consumed by lions.

Fingers was going to murder Van Dyle when Van Dyle didn't remember what he did to his mother until Batman convinced Fingers to turn him over to Commissioner Barbara Gordon. Bruce Wayne returned Fingers to the jungle and offered to reverse the experiment that made Fingers highly intelligent. Fingers rejected Bruce's offer since he wanted to protect wildlife from poachers which made Bruce see in him as a kindred spirit and ally despite Terry McGinnis believing in Fingers to be a security risk.