By Jack McKay @_jackmckay
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Videographer / Director: Dana Savorelli
Producer: Nick Johnson
Editor: Joshua Douglas
Aperil is one of four female gibbons who live with Dana Savorelli at Monkey Island Rescue in Greenwood, Missouri.
The 55-year-old runs the non-profit organisation on his ten acre farm, housing more than 250 rescued animals including 80 primates.
Dana says Aperil developed the game by placing the hat over her hat and running through the house, often bumping into objects along the way.
He said: "Aperil plays with all kinds of thing but she has been putting my hat on for a couple of years now.
"This is nothing that I have taught her it is something she has coming up with on her own.
"When she puts that hat on she can’t see at all.
"She has created her own game of blinding herself and running through the house.
"As she challenges herself to remember exactly where everything is in her path you can see her slow and put her hand out to fell for the object as she gets close.
"You have to wonder about the level of intelligence that is being processed.
“Plus it’s pure entertainment for me and anyone else in the room.
"Anyone that has seen this in person is locked on her in amazement.”