Kindle
Scott sez: "About a month ago, Koko, the 300-plus-pound ape who became famous for mastering more than 1,000 signs, began telling her handlers at the Gorilla Foundation in Woodside she was in pain. They quickly constructed a pain chart, offering Koko a scale from one to 10. When Koko started pointing to nine or 10, a dental appointment was made. And because anesthesia would be involved, her handlers used the opportunity to give Koko a head-to-toe exam." Link
UPDATE Rob sez: "Yahoo, via Bill Mesfin and API, have a slightly better version of the Koko story. Of particular note:
"Her teacher, Francine Patterson, was at her side when the anesthesiologist prepared to put her under in the morning, and apparently Koko asked to meet her specialists."
"They crowded around her, and Koko, who plays favorites, asked one woman wearing red to come closer. The woman handed her a business card, which Koko promptly ate."