>> Aug 4, 2012
This long tailed monkey (I forgot to make a note of his specific name) had to groom his tail by himself as he’s alone in the cage. The shot was taken through thick glass.
Animals frequently clean themselves to keep their fur, feathers, scales, or other skin coverings in good condition. This activity - known as personal grooming, preening, or auto-grooming - promotes hygiene. Dead skin and foreign objects such as insects, ectoparasites, leaves, dirt and twigs, are some of the items typically removed (source: wikipedia).