The Antonov An-2 (Russian nickname: "Annushka" or "Annie"; "kukuruznik" - corn crop duster; USAF/DoD reporting name Type 22, NATO reporting name Colt) is a Soviet mass-produced single-engine biplane utility/agricultural aircraft designed and manufactured by the Antonov Design Bureau beginning in 1946.
Apes (Hominoidea) are a branch of Old World tailless anthropoid primates native to Africa and Southeast Asia.
A cusp is a pointed, projecting, or elevated feature.
The molars or molar teeth are large, flat teeth at the back of the mouth.
Pace Airlines was an American charter airline based in Winston-Salem, North Carolina.