
Java
In Indonesia, the critically endangered gibbons include the
Javan gibbon (Hylobates moloch) and the Siamang (Symphalangus syndactylus), which is also found in parts of Sumatra. The
Javan gibbon is notable for its distinctive vocalizations and arboreal lifestyle, primarily inhabiting the forests of
Java. Conservation efforts are crucial for their survival, as habitat loss and poaching pose significant threats to their populations.