A juvenile baboon sitting in a tree - Tanzania

Proboscis monkey - Sarawak, Malaysia

Silvered leaf monkey - Sarawak, Malaysia

Tufted gray langur - Sri Lanka

Toque macaque - Sri Lanka

Tufted gray langur - Sri Lanka

Delacour€™s langur - Vietnam

Crab-eating macaque mother and child at a breeding facility likely to be sold to laboratories, Laos

Crab-eating macaque mother and child at a breeding facility likely to be sold to laboratories, Laos

Crab-eating macaques held at a breeding facility likely to be sold to laboratories, Laos

Crab-eating macaques held at a breeding facility likely to be sold to laboratories, Laos

Frightened crab-eating macaques held at a breeding facility likely to be sold to a laboratory, Laos