Day: September 1, 2011

New findings regarding the stereotypic behaviour of “regurgitation and reingestion” in captive western lowland gorillas

Introduction “Regurgitation and reingestion” or “R/R” is defined as a retrograde movement of foodstuff from the oesophagus or stomach to the mouth, hand or floor, and its subsequent ingestion (Lukas, 1999). R/R is not part of a gorilla’s normal feeding mechanism hence it is regarded as an anomalous behaviour, indicating […]