In 2000, the Primate Research Institute, Kyoto University (KUPRI) was delighted to welcome three new infants.
Three female chimpanzees living at KUPRI became mothers. Ai gave birth to Ayumu, Chloe gave birth to Cleo, and Pan gave birth to Pal.
As they began raising their babies we could observe and learn a great deal about various mother-infant interactions. As the infants grow up, they notably increased the variety of behavioral patterns among group members.