Frequency of removal movements during social versus self-grooming among wild chimpanzees [0.03%]
野外黑猩猩在社会性梳理和自我梳理过程中剔除动作发生频率的比较研究
Koichiro Zamma
Koichiro Zamma
Grooming was observed in 11 wild chimpanzees (Pan troglodytes schweinfurthii) in Mahale, Tanzania, and the number of removal and stroke movements and grooming duration were recorded. Removal movements were more frequent during social groomi...
Sharon Gursky-Doyen
Sharon Gursky-Doyen
As part of a long-term field study on the behavioral ecology and conservation of a population of spectral tarsiers (Tarsius spectrum) in Tangkoko Nature Reserve, Sulawesi, Indonesia, I observed the first known instance of infanticide in thi...
Seed predation by bonobos (Pan paniscus) at Kokolopori, Democratic Republic of the Congo [0.03%]
刚果共和国kokolopori的倭黑猩猩（_pan paniscus_）对种子的捕食行为
Alexander V Georgiev,Melissa Emery Thompson,Albert Lotana Lokasola et al.
Alexander V Georgiev et al.
We compared the feeding ecology of the Hali-Hali community of bonobos (Pan paniscus) at Kokolopori, a new field site in the Democratic Republic of the Congo, between two periods 5 months apart. During the first study period (SP1), bonobos r...
Social organization of a stable natal group of captive Guyanese squirrel monkeys (Saimiri sciureus sciureus) [0.03%]
圭亚那松鼠猴(Saimirisciureus)稳定同居群的社会组织结构
Meredith J Bashaw,Chelsea McIntyre,Nicole D Salenetri
Meredith J Bashaw
Socioecological models suggest competition for food, foraging efficiency, predation, infanticide risk, and the costs of dispersal regulate primate social structure and organization. Wild populations of squirrel monkeys (Saimiri spp.) appear...
Inter-individual relationships in proboscis monkeys: a preliminary comparison with other non-human primates [0.03%]
长鼻猴的个体间关系与其他非人灵长类动物的初步比较
Ikki Matsuda,Augustine Tuuga,Henry Bernard et al.
Ikki Matsuda et al.
This is the first report on inter-individual relationships within a one-male group of proboscis monkeys (Nasalis larvatus) based on detailed identification of individuals. From May 2005 to 2006, focal and ad libitum data of agonistic and gr...
Do snakes represent the principal predatory threat to callitrichids? Fatal attack of a viper (Bothrops leucurus) on a common marmoset (Callithrix jacchus) in the Atlantic Forest of the Brazilian Northeast [0.03%]
巴西东北部大西洋森林中的太白尖吻蝮蛇（Bothrops leucurus）对黑白狮尾猴（Callithrix jacchus）的致命袭击：蛇类是否是卡利特里奇属动物的主要捕食者威胁？
Stephen F Ferrari,Raone Beltrão-Mendes
Stephen F Ferrari
A juvenile common marmoset (Callithrix jacchus) was attacked by a whitetail lancehead viper (Bothrops leucurus) while playing with other group members close to the ground at a site in northeastern Brazil. The attack was almost immediately f...
Nocturnal ranging by a diurnal primate: are ring-tailed lemurs (Lemur catta) cathemeral? [0.03%]
夜行性？日行 Madagascar狐猴（环尾狐猴）的夜间活动及其昼夜行为研究
Joyce A Parga
Joyce A Parga
Cathemerality, an activity pattern comprised of distinct periods of diurnal and nocturnal activity, is a trait found among several of the Malagasy strepsirhines and one species of Aotus. Because occasional anecdotal reports suggest that som...
Florian Nitsch,Sabine Stueckle,Daniel Stahl et al.
Florian Nitsch et al.
For primates, as for many other vertebrates, copulation which results in ejaculation is a prerequisite for reproduction. The probability of ejaculation is affected by various physiological and social factors, for example reproductive state ...
Tubular anomalous bones found in both thighs of a long-tailed macaque (Macaca fascicularis) [0.03%]
长尾猕猴双侧股部长管状异常骨发育症一例
Yuzuru Hamada,Junmei Sawada,Fumiaki Cho et al.
Yuzuru Hamada et al.
Tubular anomalous bones were found in both thighs of a 6-year-old male long-tailed macaque (Macaca fascicularis) bred in captivity. The bones had jagged ends and protruded from the skin. Radiographs showed that they developed in the femurs ...
Tool-use to obtain honey by chimpanzees at Bulindi: new record from Uganda [0.03%]
乌干达布林迪黑猩猩用工具取食蜂蜜：新记录
Matthew R McLennan
Matthew R McLennan
Honey-gathering from bee nests has been recorded at chimpanzee (Pan troglodytes) study sites across tropical Africa. Different populations employ different strategies, ranging from simple 'smash-and grab' raids to use of sophisticated tool-...