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Keywords: Sleep
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Journal Articles

Pre-Sleep and Sleeping Platform Construction Behavior in Captive Orangutans ( Pongo spp . ): Implications for Ape Health and Welfare

Subject Area:
Further Areas
David R. Samson, Rob Shumaker
Journal: Folia Primatologica
Folia Primatol (2015) 86 (3): 187–202.
https://doi.org/10.1159/000381056
Published Online: 13 May 2015
...David R. Samson; Rob Shumaker The nightly construction of a ‘nest' or sleeping platform is a behavior that has been observed in every wild great ape population studied, yet in captivity, few analyses have been performed on sleep related behavior. Here, we report on such behavior in three female...
View article titled, Pre-<span class="search-highlight">Sleep</span> and <span class="search-highlight">Sleeping</span> Platform Construction Behavior in Captive Orangutans ( Pongo spp . ): Implications for Ape Health and Welfare
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Journal Articles

Comparaison du sommeil de deux macaques ( Macaca radiata et Macaca mulatta ): Comparison of Sleep between Two Species of Macaca

Subject Area:
Further Areas
J. Bert, V. Pegram, E. Balzano
Journal: Folia Primatologica
Folia Primatol (1972) 17 (3): 202–208.
https://doi.org/10.1159/000155429
Published Online: 09 September 2008
...J. Bert; V. Pegram; E. Balzano The comparison of sleep EEG between 2 species of macaca (Macaca radiata and Macaca mulatta) shows some important differences. The light sleep (stages 1 and 2) is more important in Macaca radiata, the deep sleep (stages 3 and 4) more important in Macaca mulatta...
View article titled, Comparaison du sommeil de deux macaques ( Macaca radiata et Macaca mulatta ): Comparison of <span class="search-highlight">Sleep</span> between Two Species of Macaca
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Journal Articles

Sleep of Unrestrained Chimpanzee: Differences Between First and Last Rapid Eye Movement Periods

Subject Area:
Further Areas
F.R. Freemon, J.J. McNew, W.R. Adey
Journal: Folia Primatologica
Folia Primatol (1970) 13 (2-3): 144–149.
https://doi.org/10.1159/000155315
Published Online: 09 September 2008
...F.R. Freemon; J.J. McNew; W.R. Adey Sleep is not a unique entity but can be divided into 2 separate states called REM (rapid eye movement) and non-REM sleep stages. The present study describes REM sleep in the unrestrained chimpanzee and compares the first REM period which occurs during the night...
View article titled, <span class="search-highlight">Sleep</span> of Unrestrained Chimpanzee: Differences Between First and Last Rapid Eye Movement Periods
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