National Geographic : 1957 Apr
...-----..-------. Ernest P. Walker © National Geographic Society 518 Owl-eyed, Frog-footed Tarsier Clings to a Fountain Pen as to a Jungle Stalk The Philippine island of Mindanao sends us Tarsius carbonarius, a 5-inch, 3 2 -ounce primate. Pleated ears can be folded shut like slatted blinds. Bulbous pads tip fingers and toes. Light-gathering eyes fill half of tarsier's face. If man's eyes were as large in proportion, they would measure four to five inches in diameter.