An orangutan has been seen sharing a giant giggle after being shown a magic trick in a zoo.
A man holds a polystyrene cup up to the glass of the monkey's enclosure, and shows him putting what seems like an un-ripened chestnut inside.
He then proceeds to put a lid on the cup, shake it and place it back in front of the glass.
When he opens the lid and the chestnut is gone from the cup, the previously unimpressed but interested monkey takes a second to register the trick, then throws his arms in the air and falls over laughing, rolling around in straw.
The great response sends the man and the person behind the camera into fits of laughter.
Watch the video for the full magic trick.