Judged:

1

1

1

That's good these people can work a puzzle. I tried to play Scrabble with one once, but he got frustrated because he couldn't spell.

"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."

The brainteaser was part of the zoo's voluntary enrichment activities for the chimps, which also include treats hidden in boxes and do-it-yourself materials so the chimpanzees can build their own beds every night.
http://science.nbcnews.com/_news/2013/02/24/1...