APE
A siamang is a large gibbon that is native to Malaysia, Thailand and Sumatra. It is the largest of the lesser apes (as opposed to the great apes).
Orangutans (also “orangs”) are arboreal creatures, the largest arboreal animals known to man. They are native to Indonesia and Malaysia, and live in rainforests. Like most species in rainforests these days, orangutans are endangered, with only two species surviving. The word “orangutan” is Malay, meaning “man of the forest”.