Results 51 to 60 of about 4,254 (200)

Humans and platyrrhines share a pattern of articular variance

The Anatomical Record, EarlyView.
Abstract Previous work has identified a pattern of articular shape variation in modern human limb joints, in which convex joint surfaces exhibit constrained variance relative to their more variable concave conarticulars. This pattern is notable given that joint morphogenesis is influenced by local biomechanical environments, which vary substantially ...
Haley Horbaly, Liam Zachary
wiley   +1 more source

Captive breeding of squirrel monkeys,Saimiri sciureus andSaimiri boliviensis: The problem of hybrid groups

, 1998
The electrophoretic variability of blood proteins coding for up to 32 genetic loci was analyzed in 108 squirrel monkeys (Saimiri sciureus, Saimiri boliviensis, hybrids) from two captive colonies. Twelve polymorphic loci with 31 alleles are reported.
Schreiber, Arnd, Wang, Magnus, Kaumanns, Werner   +2 more
core   +1 more source

Humans are not unique: difficult birth is common in placental mammals

Biological Reviews, Volume 101, Issue 5, Page 2214-2239, October 2026.
ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley   +1 more source

Primatas do Parque Nacional do Viruá, Roraima, Brasil

Biodiversidade Brasileira, 2018
Este trabalho apresenta o inventário consolidado de primatas do Parque Nacional do Viruá, Roraima, feito a partir da revisão da literatura e consulta ao material tombado nas coleções do Instituto Nacional de Pesquisas da Amazônia e do Museu Paraense ...
Renata Bocorny de Azevedo, Marcos de Souza Fialho, Marcelo Derzi Vidal, Rafael Suertegaray Rossato, Ricardo Sampaio, Fábio Röhe   +5 more
doaj   +3 more sources

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

The Anatomical Record, Volume 309, Issue 8, Page 2199-2220, August 2026.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza, André Luiz Quagliatto Santos, Marcelo Abidu‐Figueiredo, Thaís Aparecida Silva, Rodrigo Ananias Barreiros Silva, Paulo de Souza‐Junior   +5 more
wiley   +1 more source

Paracoccidioidomycosis (South American Blastomycosis) in a Squirrel Monkey (Saimiri sciureus)

, 1977
A female squirrel monkey (Saimiri sciureus) had granulomatous lesions in the liver and colon. There were many fungal organisms in sections of liver and many of these organisms had multiple buds on their surface.
C. M. Lang, W. D. Johnson
core   +1 more source

Mycobacterium kansasii infection in squirrel monkeys (Saimiri sciureus sciureus).

, 1995
This report documents asymptomatic infections of Mycobacterium kansasii in four of five tuberculin positive squirrel monkeys (Saimiri sciureus sciureus).
Brammer, DW, GK, Peter, Hofing, GL, CE, Chrisp, O'Rourke, CM, Health, LA   +5 more
core   +1 more source

Outbreak of Toxoplasmosis Caused by the Brazilian Lineage Type BrII in Black Lion Tamarins (Leontopithecus chrysopygus) Co‐Infected With Leishmania sp.

Journal of Medical Primatology, Volume 55, Issue 3, June 2026.
ABSTRACT Background Toxoplasmosis and leishmaniosis are zoonotic diseases that affect several species of neotropical primates. Methods Three black lion tamarins (Leontopithecus chrysopygus) kept at a Brazilian zoo died due to a superacute disease.
Acauane Sehnem Lima, Daniel Oliveira dos Santos, Clarissa Helena Santana, Lucas dos Reis de Souza, Laice Alves da Silva, Nayara Ferreira de Paula, André Duarte Vieira, Herlandes Penha Tinoco, Carlyle Mendes Coelho, Ayisa Rodrigues de Oliveira, Hilda Fátima Jesus Pena, Renato Lima Santos   +11 more
wiley   +1 more source

Early Detection of Neuroinflammation and White Matter Damage Following Dorsal Spinal Nerve Root Sectioning in a Nonhuman Primate Model

Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2786-2796, May 2026.
ABSTRACT Purpose Dorsal rhizotomy, or spinal dorsal nerve root lesioning, is a surgical procedure used to treat intractable nerve pain by selectively severing sensory afferent nerve roots. This study aimed to evaluate whether multiparametric MRI, including diffusion tensor imaging (DTI), quantitative magnetization transfer (qMT), chemical exchange ...
Feng Wang, John C. Gore, Li Min Chen
wiley   +1 more source

Gestural Sequences in Wild Spider Monkeys (Ateles geoffroyi)

American Journal of Primatology, Volume 88, Issue 4, April 2026.
Geoffroy's spider monkeys produce gestural sequences in the wild, mostly during aggressive, playful and sexual interactions. ABSTRACT To date, research on gestural communication in species other than great apes has been quite limited, especially in their natural habitat, although including a broader range of species in different settings is essential ...
Eva Corral, Sara Cardoso Rodriguez, Katja Liebal, Miquel Llorente, Federica Amici   +4 more
wiley   +1 more source