Zookeepers gave the chimps a homemade puzzle of plumbing pipes. Inside the network of pipes were two red dice. The chimps had to figure out where to poke sticks into holes in the pipes to get the dice to change directions and fall into an exit chamber. The game is based on the real-world task of using sticks to pull termites out of their nests as a snack.
"We noticed that the chimps were keen to complete the puzzle regardless of whether or not they received a food reward," study researcher Fay Clark of the Zoological Society of London said in a statement. "This strongly suggests they get similar feelings of satisfaction to humans who often complete brain games for a feel-good reward."
This article was found on the Live Science website, written by Stephanie Pappas a LiveScience Senior Writer. Unfortunately, this journalist failed at mentioned important names of the researchers involved in this project. It was also focused on all logos.
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