Just one. But it takes a alot of lightbulbs.
Explanation: This joke humorously plays with the expectations surrounding the classic “lightbulb” joke format. The punchline, “But it takes a lot of lightbulbs,” suggests that while only one gorilla is needed to change the bulb, it humorously implies that gorillas would break many lightbulbs in the process. The humor lies in the absurdity of the situation, as it creates a vivid image of a gorilla being clumsy or careless while changing a lightbulb, making it both funny and unexpected.