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Human Evolution Studies
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
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