Unlike ordinary humans, apes and primates are usually
Usually the whites are similar in color to the pupils
Chimpanzees above, humans below 
bonobo 
an orangutan 
an unknown monkey 
So there’s an article about the white of a human being
The only animal that entered the Stone Age after humans
a brown capuchin monkey
Their eyes are different from other primates 
Looks pretty much like a human being to me
It’s amazing