Yamano told Vice that such mating
was unprecedented and that gibbons are usually paired more intentionally after being exposed to each other. Now they plan to move Itoh in with Momo and the baby and have replaced the wall with the hole.White-handed gibbons are an endangered primate native to Southeast Asia. are small, endangered primates native to Southeast Asia. They are mostly monogamous, with breeding adult couples typically forming bonds that last for life.
The primates mate year-round, with the mother typically serving as the primary caregiver, though she may receive some help from the father. Gibbons tend to stay with their parents until they reach sexual maturity or about seven years.