The titi of the Orinoco (Simia sciurea) is very common south of the cataracts. Its face is white, with a blue-black spot covering its mouth and the tip of its nose. No other monkey reminds you more of a child than the titi; the same innocent expression, the same cheeky smile, the same sudden shifts from joy to sadness. Its large eyes fill with tears the moment it is frightened. It is avid for insects, especially spiders. The cleverness of this little monkey is such that one we brought in our boat could perfectly distinguish different plates in Cuvier's Tableau élémentaire d'histoire naturelle. (98) Though the engravings are not colored yet the titi tried to catch a grasshopper or a wasp with its small hand every time we showed a plate with these insects represented. When several of these little monkeys are shut up in the same cage and exposed to rain they twist their tails round their necks and hug each other to warm themselves. The titis are delicate and timid little animals. They become sad and dejected when they leave the jungle and enter the llanos.