Monkeys in transit crates waiting to be loaded into the cargo hold of a Vietnam Airlines aircraft

These monkeys were shipped by Vietnam Airlines to a laboratory in Japan

Packed in small crates, monkeys travel as cargo often on extremely long journeys

Monkeys in crates in the cargo hold of an aircraft.

20 monkeys shipped by Air France in May 2011

Monkeys shipped by Air France to Covance Research Products in the USA

Monkeys shipped by Air France to the USA for research in May 2011

Monkeys transported by Air France to the USA via Paris

Monkeys in transit crates waiting to be loaded into the cargo hold of an Air France aircraft to the USA