I dont know...have you tried asking one to follow you?
I'd rather ask a deathclaw to be my companion...but then again it would probably be easier to ride on the back of a gorilla..
Did you pass the Zoo-keeper trials in order to get your certificate? Otherwise the game go bananas if you still attempt it, because it is purely monkey business
There's a mod on Nexus that lets you http://www.nexusmods.com/fallout4/mods/6818/?
No pet deathclaws or gorillas in the base game. Mods do that for you.
There is one deathclaw in the base game that is non-hostile (if you do one thing and not another). You can even walk up to it and say things to it (it will not respond).
"Easy there. Nice deathclaw. Nobody has to be anyone's breakfast." is my favorite.
I remember that, I was in shock and terrified when I saw it not attacking me, I slowly backed away and then sprinted in the other direction as fast as I could.
I bribed the tech to let me take one with me, given the strength would come in handy.
There we were, out in the Commonwealth, and the stupid thing sees a monkey bashing on its cymbals. Must have been love at first site, as the gorilla took off after the monkey, who seemed excited as the cymbals played faster.
Then, an explosion ripped through the area, and all I saw was a monkey head flying to my left and a synth component chip fly to the right. I picked up the component and returned to the Institute. The tech said, "What happened to our gorilla?"
I selected the sarcastic option "It just went bananas monkeying around."
Spoiler - It turns out that you actually ARE an Institute gorilla. I know...shocking.
It is still there and still non-hostile (assuming you didn't go back and shoot at it or screw around with the nest).
The more important question is does synthetic gorilla meat taste the same as gorilla meat?
I wouldn't do it unless I was given the recall code.
All hail the PC master race. Gotta try that one.