Blue monkey (Cercopithecus mitis stuhlmanni), in the Kakamega Forest, Western province, Kenya, subjects of long-term study

- Image ID: K02GTY

Blue monkey (Cercopithecus mitis stuhlmanni), in the Kakamega Forest, Western province, Kenya, subjects of long-term study

John Cancalosi / Alamy Stock Photo

Image ID: K02GTY