The world’s only venomous primate. They lick the inside of their arms, where a gland secretes a toxic sweat. Laced with this venom, their long, razor-sharp canines paralyze caterpillars, insects, small vertebrates, and other prey. Even humans, who have ill-advisedly taken them as pets, have fallen into anaphylactic shock when bitten.

As you can see in the pictures, their eyes strongly reflect light from the camera’s flash. Like their lemur and bushbaby relatives, lorises have a reflective layer in back of their eyes, the tapetum lucidum, that helps their night vision.

This species of Slow Loris, Nycticebus coucang, inhabits Sumatra and the Malay peninsula. These two were photographed in a dark exhibit in the Bronx Zoo’s Jungle World.

• loris,
• primates,
• zoos