Ключевые слова: animal, animal behavior, ape, beauty, beauty in nature, biodiversity, biology, book, cute, ecology, ecosystem, ecotourism, endangered species, enjoy, environment, environmental conservation, fauna, forest, habitat, indonesia, monkey, natural, natural parkland, nature, nature reserve, no people, north sulawesi, outdoors, primate, protection, rainforest, spectral, sulawesi, tangkoko, tarsier, tarsius, the nature conservancy, tour, tourism, travel, trip, tropical, tropical forest, vertebrate, voyage, wild, wildlife, wildlife conservation, wildlife observation, zoology,