Gibbons are apes in the family Hylobatidae. The family historically contained one genus, but now is split into four genera and 17 species. Gibbons occur in tropical and subtropical rainforests from eastern Bangladesh and northeast India to southern China and Indonesia
From which continent are native tribes and ethnic groups called the Hausa, Yoruba, Igbo, Amhara, Somali, Fula, Shona, Zulu, Hutu, Maasai, Tutsi and Nubians?