TABLE I.
Frequencies and Inter-Individual Variation in Communicative Behaviors in Experiment 1 for Orangutans*
| Testing condition |
||
|---|---|---|
| Behavioral category | Experimenter present | Experimenter absent |
| Vocalization | 27 (5) | 6 (2) |
| Gesture | 26 (5) | 4 (7) |
| Cage bang | 3 (1) | 2 (2) |
| Lip pout | 19 (5) | 1 (1) |
| Clap | 2 (2) | 1 (1) |
| Spit | 4 (2) | 1 (1) |
| Barter | 12 (5) | 2 (2) |
| Display | 1 (1) | 1 (1) |
| Leave | 5 (3) | 18 (7) |
| Other | 5 (3) | 4 (2) |
| Dclean | 0 | 0 |
*
Values given are number of occurrences of each behavior (number of individuals performing each behavior).