Related to chimpanzee scratching head

Ring-tailed Lemur — Gray, Alert, Photograph

4096 × 2712

Mandrill Monkey Face — Black, Intense, Photograph

1366 × 768

Slow Loris Monkey

1204 × 801

Orangutan Face — Brown, Calm, Photograph

2880 × 1800

Gorilla in Profile — Black, Calm, Afternoon

1400 × 1050

Gorilla in Profile — Gray, Neutral

1366 × 768

Squirrel Monkey — Gray

4288 × 3216

Mandrill Monkey Face — Black

1600 × 1200

Gorilla in Profile — Black

2560 × 1600

Orangutan with Open Mouth — Brown, Neutral

1920 × 1080

Baby Gorilla Yawning

1024 × 709

Two Golden Lion Tamarins

1920 × 1200

White-faced Saki Monkey — White

1024 × 768

Mandrill Monkey Yawning

1024 × 667

Ring-tailed Lemur — Gray, Curious, Photograph, Eyes

902 × 600

Ring-tailed Lemur — Gray, Curious, Photograph

800 × 600

Mandrill Monkey

1024 × 768

Two marmoset monkeys

800 × 600

gorilla in profile

1600 × 1200

Orangutan resting on rock

1600 × 1200

baby baboon portrait

1024 × 768

white-faced saki monkey

1024 × 768

gorilla with open mouth

1400 × 1022

gorilla resting on its arm

1600 × 1063