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THE BEGINNINGS OF PRIMATES [PDF]

open access: yesEvolution, 1968
When and from what mammalian group did primates originate? This question cannot yet be answered as accurately as students of Cretaceous and early Tertiary mammals would like. Although the evidence is still fragmentary and meager, however, the beginnings of primate radiation and their origin can be relatively well recognized.
openaire   +2 more sources

Accelerated Evolution of the ASPM Gene Controlling Brain Size Begins Prior to Human Brain Expansion [PDF]

open access: yes, 2004
Primary microcephaly (MCPH) is a neurodevelopmental disorder characterized by global reduction in cerebral cortical volume. The microcephalic brain has a volume comparable to that of early hominids, raising the possibility that some MCPH genes may have ...
Abeysinghe   +40 more
core   +3 more sources

Differentiation of Trichuris species using a morphometric approach [PDF]

open access: yes, 2019
Trichuris trichiura is a nematode considered as the whipworm present in humans and primates. The systematics of the genus Trichuris is complex. Morphological studies of Trichuris isolated from primates and humans conclude that the species infecting these
Callejón Fernández, Rocío   +6 more
core   +1 more source

Response to novel objects and foraging tasks by common marmoset (Callithrix Jacchus) female Pairs [PDF]

open access: yes, 2003
Many studies have shown that environmental enrichment can significantly improve the psychological well-being of captive primates, increasing the occurrence of explorative behavior and thus reducing boredom.
A Koenig   +42 more
core   +1 more source

Primate photopigments and primate color vision. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1996
The past 15 years have brought much progress in our understanding of several basic features of primate color vision. There has been particular success in cataloging the spectral properties of the cone photopigments found in retinas of a number of primate species and in elucidating the relationship between cone opsin genes and their photopigment ...
openaire   +3 more sources

Posttransplant lymphoproliferative disorders in neuronal xenotransplanted macaques [PDF]

open access: yes, 2016
Posttransplant lymphoproliferative disorders (PTLDs) are a heterogeneous group of lymphoid proliferations that occur in the setting of depressed T-cell function due to immunosuppressive therapy used following solid organ transplantation, hematopoietic ...
Aron Badin, R.   +12 more
core   +1 more source

Primate archaeology evolves [PDF]

open access: yesNature Ecology & Evolution, 2017
Since its inception, archaeology has traditionally focused exclusively on humans and our direct ancestors. However, recent years have seen archaeological techniques applied to material evidence left behind by non-human animals. Here, we review advances made by the most prominent field investigating past non-human tool use: primate archaeology.
Lydia V. Luncz   +23 more
openaire   +5 more sources

Comparison of musculoskeletal networks of the primate forelimb [PDF]

open access: yes, 2017
Anatomical network analysis is a framework for quantitatively characterizing the topological organization of anatomical structures, thus providing a way to compare structural integration and modularity among species.
Diogo, R   +3 more
core   +2 more sources

Of apples and oranges? The evolution of “monogamy” in non-human primates [PDF]

open access: yes, 2020
Behavioral ecologists, evolutionary biologists, and anthropologists have been long fascinated by the existence of “monogamy” in the animal kingdom.
Di Fore, Anthony   +2 more
core   +2 more sources

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