Results 141 to 150 of about 84,650 (262)

Social tolerance and role model diversity increase tool use learning opportunities across chimpanzee ontogeny

open access: yesCommunications Biology
Social learning opportunities shape cognitive skills across species, especially in humans. Although the social environment impacts learning opportunities, the benefits of role model diversity and tolerance on task learning in tool-using species remain ...
Oscar Nodé-Langlois   +6 more
doaj   +1 more source

Anatomical Description of the Main Gyri and Sulci of the Telencephalon of Alouatta belzebul

open access: yesAnatomia, Histologia, Embryologia, Volume 55, Issue 3, May 2026.
ABSTRACT The Alouatta belzebul is a species of howler monkey, of the Atelidae family and genus Alouatta. It is endemic in Brazil and has a separate geographic distribution, with two populations occurring: in the Amazon and in the Atlantic Forest on the coast of Northeast Brazil. The species is classified as ‘vulnerable’, and this is mainly justified by
Dayane Kelly Sabec Pereira   +4 more
wiley   +1 more source

Terrestrial Positional Behavior of Wild Pongo pygmaeus

open access: yesAmerican Journal of Biological Anthropology, Volume 189, Issue 4, April 2026.
ABSTRACT Objectives As a predominantly arboreal animal in the wild, the terrestrial positional behavior of Pongo pygmaeus is poorly understood, having been studied almost exclusively in captive settings. This study uses camera‐trap footage to provide the first assessment of wild orangutan terrestrial locomotor and postural behavior on natural ...
Emily R. Orlikoff   +7 more
wiley   +1 more source

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

open access: yesThe Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae   +4 more
wiley   +1 more source

Immature Excitatory Neurons in the Postnatal Ferret Paralaminar Nuclei and Their Relationship to the Amygdala Across Species

open access: yesJournal of Comparative Neurology, Volume 534, Issue 4, April 2026.
Left: Schematic of a coronal section of the adult ferret brain, showing the location of a collection of Dcx+ cells (green) ventrally to the amygdala (grey) in a region homologous to the PL in other species. These cells are spatially distributed either as individual cells in a dispersed field or in clusters (1). Cells in the ferret PL display molecular (
Lucía Inés Torrijos‐Saiz   +7 more
wiley   +1 more source

Chimpanzees

open access: yes, 2003
Biblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín, 5 - 3 planta; 28014 Madrid; Tel.
openaire   +1 more source

Short‐Term Puzzle Feeder Enrichment Increases Food Engagement but Not Stress‐Related Behaviour in Captive Golden‐Headed Lion Tamarins

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
Food puzzles significantly increased food engagement time in captive golden‐headed lion tamarins (Leontopithecus chrysomelas), with individuals spending three times longer foraging compared to standard food bowls. Grooming and activity levels showed no short‐term changes, though patterns varied across enclosures. These findings highlight puzzle feeders
Giulia Pipolo   +4 more
wiley   +1 more source

Leishmania Extracellular Vesicles as a Preventive Vaccine Platform Against Leishmaniasis

open access: yesJournal of Extracellular Vesicles, Volume 15, Issue 4, April 2026.
The potential of Leishmania‐derived extracellular vesicles (EVs) as a vaccine platform was investigated, emphasizing an affordable, GMP‐compliant production and purification method. Immunization with EV vaccines, either unadjuvanted or combined with α‐galactosylceramide (αGC), induced robust humoral and cellular immune responses, conferring protection ...
Ismail Cem Yilmaz   +24 more
wiley   +1 more source

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