Behavioral categories (adapted from Platt et al., 2000)
Locomotion | Any two or more directed steps in the horizontal or vertical plane |
| Object exploration | Any tactile or oral manipulation of features of the observational arena |
| Foraging | Sweeping and/or picking through wood-chip substrate |
| Self-grooming | Picking, scraping, spreading or licking of fur |
| Scratching | Rapid movement of digits through fur in a rhythmic motion |
| Visual scanning | Directed eye and/or head movements, usually from a sitting position |
| Rest posture | Species-typical posture: crouched on hind legs, hunched back, tail wrapped around upper body |
| Static posture | Maintenance of a fixed, rigid posture |
| Vocalization | Any utterance including chirps, twitters, peeps, etc. |
| Other | Any notable behavior not defined above (e.g., yawn, sneeze) |