- PRIMATES: HISTORY, TAXONOMY, CHARACTERISTICS, BEHAVIOR
- PRIMATES, APES, HOMINIDS AND HUMANS
- MONKEY TYPES: OLD AND NEW WORLD, LEAF- AND FRUIT-EATING
- MONKEY BEHAVIOR: GROUPS, FAIRNESS, DRUNKENESS
- MONKEY INTELLIGENCE: SELFIES, COUNTING AND SELF-RECOGNITION
- MONKEY SEX: PAYING FOR IT, MASTURBATION, HOMOSEXUALITY
- MONKEYS AND HUMANS: HANUMAN, PETS, TEMPLES, COCONUTS AND CLONED EMBRYOS
- PESKY, TROUBLESOME URBAN MONKEYS AND MONKEY ATTACKS
- MACAQUES: CHARACTERISTICS, BEHAVIOUR, MATING
- MACAQUE SPECIES
- RHESUS MONKEYS: CHARACTERISTICS, BEHAVIOR, RESEARCH
- LANGURS: TYPES, GENUSES, LEAF MONKEYS, BEHAVIOR
- PROBOSCIS MONKEYS: CHARACTERISTICS, BEHAVIOR, MATING
- SNUB-NOSED MONKEYS: BEHAVIOR, NEW SPECIES
- GIBBONS: TREES, SONGS, MOTHERS AND DIFFERENT SPECIES
- HOOLOCK GIBBONS
- TARSIERS: THEIR CHARACTERISTICS, SOCIAL BEHAVIOR AND MATING
- LORISES
- ORANGUTANS: CHARACTERISTICS, HISTORY, FOOD
- ORANGUTAN SPECIES (BORNEAN, SUMATRAN, TAPANULI): DIFFERENCES, CHARACTERISTICS, BEHAVIOR
- ORANGUTAN BEHAVIOR: COMMUNICATION, CULTURE, SEX, MURDER
- ORANGUTAN INTELLIGENCE: TOOLS, LEARNING, IPADS
- ORANGUTANS AND HUMANS: PETS, TROUBLEMAKERS, FREEDOM
- ENDANGERED ORANGUTANS: FIRES, POACHING AND PALM OIL
- ORANGUTAN CONSERVATION AND REHABILITATION
- BIRUTÉ GALDIKAS: HER LIFE, WORK AND ORANGUTANS
