Picture 4.jpg (IMAGE) Durham University Caption Marie grooming Flora. Marie, an 18-year-old bonobo, adopted Flora, who is estimated to be two-and-a-half-years-old, after Flora's mother disappeared from a separate group. Credit Nahoko Tokuyama Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.