One chimp, two chimp.

Science Daily continues to make me feel inadequate by pointing out that even chimpanzees are better at math:

“There are still many people, including many biologists, who believe that humans are superior to chimpanzees in all cognitive functions,” said Tetsuro Matsuzawa of Kyoto University. “No one can imagine that chimpanzees–young chimpanzees at the age of five–have a better performance in a memory task than humans. Here we show for the first time that young chimpanzees have an extraordinary working memory capability for numerical recollection–better than that of human adults tested in the same apparatus, following the same procedure.”

Apparently, young chimps are much more likely than humans to have a photographic memory as well. More on this research at the BBC and New Scientist.