Orangutan laughs hysterically at zoo magic trick - and so will you

One of the visitors at the Barcelona Zoo performed a simple magic trick for an orangutan watching from behind a glass enclosure. The curious animal's reaction might just be one of the funniest things you have ever seen, reports CBS News.

In a YouTube video posted by Dan Zaleski, the ape watches as a chestnut is placed in a Styrofoam cup. The man puts on a lid, shakes the cup, and quickly dumps it out of view before returning the cup back before the curious orangutan, who stares at it intently. He removes the lid and holds the now-empty cup up for the ape's inspection, the report reads.

The ape briefly pauses before reacting in the best way possible – he opens his mouth wide, throws his head back, and appears to laugh uproariously, falling back in disbelief and legs in the air.