National Geographic : 1940 Aug
The National Geographic Magazine His Voice Can Be Imitated on a Violin Although some of the notes "sung" by the dark Sumatra Gibbon are a trifle nerve-racking, others have a musical quality. Voices of some gibbons have a range of more than two octaves. © National Geographic Society Paintings by Elie Cheverlange When This Long-armed Rascal Stands Up, Fingertips Touch the Ground The White-handed Gibbon of Tenasserim, northern Malay Peninsula, and its relatives travel in large bands (Plates V and VII). One baby is born to a pair each year and does not shift for itself until three or four years old. Often families contain several small children of various ages.