Home / Animals / 59-Year-Old Very Sick Chimpanzee Refuses Food, Until She Re-Unites With Her Old Caretaker

59-Year-Old Very Sick Chimpanzee Refuses Food, Until She Re-Unites With Her Old Caretaker

Mama, 59 years old and the oldest chimpanzee and the matriarch of the famous chimpanzee colony of the Royal Burgers Zoo in Arnhem, the Netherlands, was gravely ill. Jan van Hooff (emeritus professor behavioural biology at Utrecht University and co-founder of the Burgers colony) who has known Mama since 1972, visited her in the week before she died of old age in april 2016. It took a while before she became aware of Jan’s presence. Her reaction was extremely emotional and heart-breaking. Mama played an important social role in the colony. This has been described in “Chimpanzee Politics” by Frans de Waal, who studied the colony since 1974.

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