| Answer | % Correct |
|---|---|
| Chimpanzee | 88%
|
| Bonobo | 82%
|
| Human | 81%
|
| {Western} gorilla | 73%
|
| {Bornean white-bearded} gibbon | 69%
|
| {Eastern} gorilla | 69%
|
| Bornean orangutan | 54%
|
| Sumatra orangutan | 54%
|
| Siamang | 35%
|
| {Lar} gibbon | 27%
|
| {Silvery} gibbon | 26%
|
| Tapanuli orangutan | 22%
|
| {Agile} gibbon | 9%
|
| {Black crested} gibbon | 8%
|
| {Hainan} gibbon | 7%
|
| {Yellow-cheeked} gibbon | 7%
|
| {Eastern grey} gibbon | 5%
|
| {Eastern hoolock} gibbon | 5%
|
| {Northern white-cheeked} gibbon | 5%
|
| {Pileated} gibbon | 5%
|
| {Skywalker hoolock} gibbon | 5%
|
| {Western hoolock} gibbon | 5%
|
| {Eastern black crested} gibbon | 4%
|
| {Kloss's} gibbon | 4%
|
| {Müller's} gibbon | 4%
|
| {Northern buffed-cheeked} gibbon | 4%
|
| {Southern white-cheeked} gibbon | 4%
|
| {Western grey} gibbon | 4%
|