“Where does a gorilla play baseball?”/“In the bush leagues.”

The “bush leagues” in baseball don’t necessarily have bushes, but there’s a riddle:
 
Q: Where does a gorilla play baseball?
A: In the bush leagues.
 
The joke has been cited in print since at least 2003.
 
           
Wiktionary: bush league
Noun
bush league (plural bush leagues)
1. (chiefly US, idiomatic) A professional sports association at the lower levels of minor league organization.
2. (figuratively, by extension) A low-ranking or inferior level among groups, professions, organizations, etc.
 
Google Books
Last Call
By Laura Pedersen
New York, NY: Random House Publishing Group
2003
Pg. ?:
“Hey Grandpa, where does a gorilla play baseball?” asks Joey.
 
“I don’t know, Joey. Where does a gorilla play baseball?”
 
“In the bush leagues.”
   
Twitter
San Singhania‏
@jokestoday
Where did the Gorilla play baseball? In the bush leagues,of course!  http://www.webfoolish.com
3:05 PM - 25 Sep 2009
 
Google Books
Horrid Henry’s Joke Book
By Francesca Simon
Naperville, IL: Sourcebooks Jabberwocky
2010
Pg. 61:
Where did the Gorilla play baseball?
In the bush leagues, of course!
   
Twitter
PHP autotweet‏
@PHPautotweet
Where did the Gorilla play baseball? In the bush leagues, of course!
2:38 PM - 6 Aug 2017
 
Twitter
Lucky Score‏
@LuckyScoreNet
Where did the
Gorilla play baseball?
In
the bush leagues,of course!
#Joke from #GorillaJokes in #Jokes, #Humor and #Satire
6:21 AM - 30 Dec 2017