Schleich Proboscis Monkey Wild Life figure. The Proboscis Monkey from Schleich® WILD LIFE is a primate that lives in rainforests and mangrove forests on the Asian island of Borneo. The males have a strikingly large nose that can be up to 10 cm long. But they don’t have a strong sense of smell. Researchers believe that it is used to impress females. Proboscis Monkeys are day-active mammals who live in small groups and feed on leaves and fruits.