Popis: |
Pacing is a commonly investigated behavior in zoo animals, however, little data have been published to support a precise definition of pacing. High speed video of pacing behavior in 11 zoo-housed polar bears (Ursus maritimus) was compared with goal-oriented locomotion in the same bears. Specifically, step cycle duration and head height ratio were measured, as was the variability of these two dimensions. The median step cycle duration while pacing was found to be 17.0% (±26.7%) shorter than step cycle duration while locomoting (P |