• An adult female mount on an adult male in Japanese macaques at Kiinkazan Island

• Play chase with a piece of paper among juvenile Japanese macaques in Kinkazan Island

• Tree shaking display by adult female in Japanese macaques at Odo, Kochi

• Solicitaion of mounting by adult female Japanese macaques at Yakushima

• Koitachi (Mustela itatsi sho), an subspecies of Japanese weasel, which is endemic to Yakushima Islan

• A Japanese macaque adult female with golden hair named "Hikari" at Funakoshi yama Monkey Park, Hyogo

• Grooming by a presbyopic old female Japanese macaque

• African clawless otter

• A bushpig which was preyed upon by a leopard.

• A scat of an African leopard

• An adult male leopard

• Grooming of yellow baboons

• Progression of a Large Group of Mandrills

• Mandrills in the Moukalaba-Doudou National Park, Gabon

• A group of striped mongoose

• Mounting behavior among male juvenile Hainan rhesus macaques

• A group of François' langur on the cliff of limestone

• Stone hundling by an adult female Japanese macaques

• An adult male of Hainan rhesus macaques

• Bathing into hot spring by Japanese macaques in Jigokudani, Japan

• Onset and exchange of grooming behavior in Japanese macaques

• Pseudo-feeding by juvenile Japanese macaques

• Large resting cluster of Japanese macaques in Shodoshima Island, Japan

• An adult female Japanese macaques feeding barkin Mt. Hakusan during winter

• Mother and infant of Japanese macaques moving in snowy area

• Long-sightedness in old Japanese macaques during grooming

• An all-male grouop of Japanese macaques living in Kinkazan Island, Japan

• An adult femle Japanese macaques feeding seaweed in Kinkazan Island, Japan

• Foraging behavior of Japanese macaques on unripe fruits of Myrica rubra in Yakushima Island

• Social grooming cluster including four individuals of Japanese macaques in Yakushima Island

• Ash falls by the eruption of Mt. Shindake in Kuchinoerabu Island and Japanese macaques on Yakushima

• A juvenile female chimpanzee feeding on a pith of Aframomum.

• A juvenile female chimpanzee swinging on a vine.

• Polyspecific association between Japanese macaques and sika deer in Yakushima Island

• An adult male chimpanzee licking a rock.

• An adult male chimpanzee feeding on a fruit of Myrianthus.

• Chimpanzee's tool use

• Chimpanzees' meat eating cluster

• Grooming hand-clasp

• A female extending her hand to a male for greeting

• A chimpanzee mother carrying her infant

• greeting to a male chimpanzee(Pan troglodytes schweinfurthii)

• a female chimpanzee(Pan troglodytes schweinfurthii) eating fruts of lemon (Citrus limon)

• grooming cluster of wild chimpanzees(Pan troglodytes schweinfurthii)

• a female chimpanzee(Pan troglodytes schweinfurthii) with genital swelling

• Resting blue monkey

• grooming hand-clasp of wild chimpanzees(Pan troglodytes schweinfurthii)

• A three-year-old infant chimpanzee at the Mahale Mountains National Park. Infants of this age tend t

• Resting L'Hoest's monkey

• Rssting red-tailed monkey

• Japanese monkeys huddled with each other during resting in the snow-coverd area.

• Japanese monkeys huddled with each other in the snowstorm.

• An adult male at the Mahale Mountains National Park.

• Food transfer between mother-infant Bornean orangutans

• Japanese monkeys basked in the sun.

• Adult male of long-tailed macaques in Khao Sam Roi Yot, Thailand

• Stumptail macaques sitting on/around the statue of Buddah in Kao Ka Puk temple, Thailand

• A male orangutan breaking dead branches for foraging insects

• Allomothering behaviour in tantalus monkeys at Kala Maloue, Cameroon

• Tantalus male emits alarm call at Kala Maloue, Cameroon.

• A group of dasky langurs eat legume leaves in Khao Sam Roi Yot, Thailand

• Day resting on a tree of tamarind in patas monkyes at Kala Maloue, Cameroon

• Feeding on flower of white Egyptian lotus by juvenile patas monkeys at Kala Maloue, Cameroon

• Adult female patas monkeys groom harem male at Kala Maloue, Cameroon

• Loud call in Mantled howler monkeys at Santa Rosa, Costa Rica

• Allomothering behaviour between mothers in patas monkeys at Kala Maloue, Cameroon

• Alarm call in White-throated capchins at Santa Rosa, Costa Rica

• Insect catching on the ground in White-throated capchins at Santa Rosa, Costa Rica

• Mating behaviours in Mantled howler monkeys at Santa Rosa, Costa Rica

• Aggressive interaction between adult females and young female in Geoffroy's spider monkeys at Santa

• Semi-brachiation in Geoffroy's spider monkeys at Santa Rosa, Costa Rica)

• Play chase with a target object among juvenile Japanese macaques in Kinkazan Island

• An old female Japanese macaque at south-western Shimokita Peninsula.

• A group of hybrids between Taiwanese macaques and Japanese macaques at Oike, Wakayama.

• Temporal feeding association between Japanese macaques and Sika deer in Yakushima

• A very old adult male in wild Japanese macaques atYakushima Island.

• Solitary play with water in juvenile Japanese macaques at Yakushima Island

• Feeding on simen ejacualted by masturvation in male Japanese macaques at Yakushima Islnad.

• Aggressive encounter between bisexual group and male group of Japanese macaques in Yakushima.

• Male masterbation in Japanese macaques at Yakushima Island.

• An newborn infant which have been delivered within 12 hours in free-ranging Japanese macaques at Ara

• The Japanese macaqeus in Awajishima aggregate to shown Japanese word "Saru" (monkeys in English) acc

• Social grooming involved in three individuals in Choshikei on Shodoshima Island

• Stone handling perfomed by adult females in Choshikei on Shodoshima Island

• Stone handling perfomed by adult females in Arashiyama Monkye Park Iwatayama

• Extra-large clustering which are formed by Japanese macaques in Choshikei on Shodoshima Island

• Mutual grooming exhibited by Japanese macaques in Choshikei on Shodoshima Island

• Ventro-ventral type of embracing behavior of Japanese macaques in Yakushima Island

• Food snatching of Japanese macaques in Choshikei on Shodoshima Island

• Embracing behavior of Japanese macaques in Kinkazan Island

• Ventro-lateral type of embracing behavior of Japanese macaques in Yakushima Island