Article
Zoology
Yu Kaigaishi, Shinya Yamamoto
Summary: The paper reports a new case of stillbirth and maternal cannibalism in a group of Japanese macaques. The researchers compared this case with previously reported cases in Old World monkeys and discussed the possible link between stillbirth, maternal care, and cannibalism.
Article
Behavioral Sciences
Emily J. E. Messer, Mark T. Bowler, Nicolas Claidiere, Andrew Whiten
Summary: Anointing is a behavior in which animals apply pungent-smelling materials over their bodies. In capuchin monkeys, anointing may serve as a social bonding mechanism in addition to its medicinal benefits, and it can affect the monkeys' social networks.
Article
Neurosciences
Erin E. Hecht, Olivia T. Reilly, Marcela E. Benitez, Kimberley A. Phillips, Sarah F. Brosnan
Summary: This study found significant expansion in different regions for female tufted capuchin monkeys, while male expansion was limited to the hypothalamus. The network connectivity of these regions was revealed through fiber tractography. Compared to rodents and humans, capuchins show non-overlapping male and female volumetric measures in brain regions.
JOURNAL OF COMPARATIVE NEUROLOGY
(2021)
Article
Multidisciplinary Sciences
Chase M. Watson, Chet C. Sherwood, Kimberley A. Phillips
Summary: This study used electron microscopy to measure the myelin characteristics of the midsagittal area of the corpus callosum (CC), and found differential patterns of myelin growth in different regions.
SCIENTIFIC REPORTS
(2022)
Article
Neurosciences
Marcos Donizete Junior Granado, Luciana Pinato, Jeferson Santiago, Sandra Maria Barbalho, Jessica Ellen Lima Parmezzan, Lenita Mayumi Suzuki, Mayara Longui Cabrini, Daniele Raineri Mesquita Serva Spressao, Ana Leticia Carneiro de Camargo, Leila Maria Guissoni Campos
Summary: Melatonin acts as a transducer of light information and is involved in the synchronization of physiological and behavioral phenomena. The expression of melatonin receptors and clock genes in the inferior olivary nucleus indicates their potential role in sleep, anxiety, circadian rhythm, and motor control mechanisms.
FRONTIERS IN NEUROSCIENCE
(2022)
Article
Biology
Sophia Daoudi-Simison, Eoin O'Sullivan, Genevieve Moat, Phyllis C. Lee, Hannah M. Buchanan-Smith
Summary: In the wild, coordinated group behaviour is important for maintaining spatial coherence and individual fitness. However, it is unclear whether synchronizing behaviours is necessary in captivity with minimal ecological pressures. This study investigated the behaviour synchrony of two mixed-species groups (capuchins and squirrel monkeys) at a zoo in the UK. The results showed higher intraspecies synchrony but low interspecies synchrony, highlighting differences in behavioural structure between single- and mixed-species groups.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Review
Pediatrics
Taryn Schuelke, Claire Crawford, Rachel Kentor, Heather Eppelheimer, Cristina Chipriano, Kirstin Springmeyer, Allison Shukraft, Malinda Hill
Summary: This article provides a comprehensive overview of current grief support in relation to Pediatric Palliative Care (PPC), covering anticipatory grief, grief around the time of death, grief after death, and innovative approaches. The contents aim to support and educate programs providing grief services and those beginning the meaningful work of grief support.
Article
Multidisciplinary Sciences
Alexander Hofmann, Florian Putz, Maike Buttner-Herold, Markus Hecht, Rainer Fietkau, Luitpold Distel
Summary: The study shows that normal tissue cells are capable of non-professional phagocytosis, with epithelial cells exhibiting higher rates compared to mesenchymal cells. The phagocytic activity increases significantly with progressing cell cycle phases. Mitotic cells regularly phagocytose dead cells, indicating a potential evolutionary anchorage of this process.
Article
Ecology
Ally K. Brown, Malit O. Pioon, Kay E. Holekamp, Eli D. Strauss
Summary: Despite being rare, infanticide in spotted hyenas is a major cause of juvenile mortality, with adult females being the perpetrators while victims can be of both sexes. The study provides strongest support for the hypothesis that infanticide in spotted hyenas reflects competition over social status among matrilines.
AMERICAN NATURALIST
(2021)
Article
Multidisciplinary Sciences
Lu Wang, Rose Gilroy, Andrew Law
Summary: This paper investigates the changing ideas and practices of elder-care for the emerging Chinese middle class. Through in-depth interviews with ten middle-class families in Tianjin, the study reveals how increased resources and pressure impact the care for older people and expectations surrounding elder-care. Thematic analysis of interview transcripts uncovers three main findings: the generation born in the 1950s and 1960s often negotiate their caregiving responsibilities between their parents and grandchildren, the unregulated market-based home care sector is often the only viable solution for many families, and filial piety is shifting from a normative expectation to new practices rooted in familial reciprocity due to an increasingly postmodern culture. The paper concludes by reflecting on the challenges that will arise from the proposed increase in China's retirement age and the geographical dispersion of generations, and suggests exploring flexible working policies and investment in a regulated home care sector as potential solutions.
Article
Ecology
Marilena Frye, Torvald B. Egeland, Jarle Tryti Nordeide, Ivar Folstad
Summary: The study found that cannibalistic behavior occurred in nearly 50% of Arctic charr spawning events, with the highest number of fish cannibalizing on eggs in multiple spawning events. The number of males releasing milt and the density of fish at the spawning site were positively correlated with egg cannibalism. Despite some instances of partial filial cannibalism, protective behavior towards eggs was observed in dominant males and females, indicating that charr exhibit parental care.
ECOLOGY AND EVOLUTION
(2021)
Article
Ecology
Annika Paukner, Emily M. Slonecker, Lauren J. Wooddell
Summary: This study found that alpha male tufted capuchin monkeys exhibited dramatic changes in facial appearance, body size, and testicular volume when they had direct access to females, while there were no differences in weight or measurements between alphas and subordinates without physical access to females. The research suggests that alpha males may develop sexual secondary characteristics when in direct physical contact with females.
ECOLOGY AND EVOLUTION
(2021)
Article
Zoology
Regina Paxton Gazes, Allie E. Schrock, Corinne N. Leard, Meredith C. Lutz
Summary: This study examines the social behavior of brown capuchin monkeys, a species of platyrrhine primate, by analyzing age, sex, kinship, and dominance rank in relation to submissive, aggressive, contact, and grooming interactions. The findings suggest that brown capuchin monkeys exhibit a steep linear dominance hierarchy, tend to affiliate with kin, similarly aged animals, and like-ranked animals, and exhibit more aggression towards nonkin. However, unlike catarrhine monkeys, brown capuchins do not compete for access to higher ranking social partners.
AMERICAN JOURNAL OF PRIMATOLOGY
(2022)
Article
Biology
Elisa Fernandez-Fueyo, Yukimaru Sugiyama, Takeshi Matsui, Alecia J. Carter
Summary: Research suggests that non-human primates' mothers respond to infant death differently based on the cause of death and maternal age. Mothers are more likely to carry infants who died from non-traumatic causes, and younger infants are observed to be carried for longer periods.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Psychology
Eleanor Jade Jordan, Christoph J. Voelter, Amanda M. Seed
Summary: This study investigates whether capuchin monkeys' object exploration supports learning and finds that they are able to effectively acquire functional information during exploration and demonstrate the ability to choose functional objects in testing.
COGNITIVE NEUROPSYCHOLOGY
(2021)
Review
Biology
Cinzia Trapanese, Helene Meunier, Shelly Masi
BIOLOGICAL REVIEWS
(2019)
Article
Multidisciplinary Sciences
Cinzia Trapanese, Benjamin Robira, Giordana Tonachella, Silvia di Gristina, Helene Meunier, Shelly Masi
ROYAL SOCIETY OPEN SCIENCE
(2019)
Article
Psychology, Biological
Cinzia Trapanese, Helene Meunier, Shelly Masi
Summary: Foraging in seasonal environments requires high cognitive demands. This study investigated the ability of primates with different degrees of frugivory to develop mental representation of spatio-temporal food distribution. The results showed that primates remembered the availability of food in different seasons and flexibly adjusted their feeding choices based on provided temporal cues.
QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY
(2022)