Gibbons, etc. is a term used to refer to the family of APES that includes gibbons, siamangs, and hoolock gibbons. These primates are found in tropical and subtropical rainforests in Southeast Asia and are known for their loud vocalizations and long arms. They are also known for their acrobatic abilities and are often seen swinging from branch to branch. Gibbons, etc. are an endangered species due to habitat destruction and illegal hunting.