What is the harriest monkey in the world?

Question

I think the harriest monkey in the world is probably macaque

Answer 1

Depends on how exactly you define hairiest.

It could be defined by total number of hair follicles (in which case, it would probably be the gorilla), density of hair follicles per unit measure (in which case, I suspect it's probably the Japanese macaque), relative length of hair (probably the silver colobus), or the overall coverage of hair (probably the woolly howler monkey).