Diana monkey at Paignton Zoo, Devon, England.

From Wikipedia

The Diana monkey (Cercopithecus diana) is an Old World monkey found in the high canopy forests in Sierra Leone, Liberia, and western Côte d’Ivoire. Named for its white brow which is said to resemble the bow of the Roman goddess Diana, this black-grey guenon has a white throat, crescent-shaped browband, ruff and beard.

Image details
Date: 19 September 2025
Camera body: Nikon D50
Lens: Tamron 70.0-300.0 mm f/4.0-5.6
Focal Length: 300mm
Aperture: ƒ/5.6
Shutter Speed: 1/100s
ISO: 800
Licence: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International