Results 41 to 50 of about 14,672,329 (357)

Sociality and the Rate of Molecular Evolution [PDF]

Molecular Biology and Evolution, 2005
The molecular clock does not tick at a uniform rate in all taxa but may be influenced by species characteristics. Eusocial species (those with reproductive division of labor) have been predicted to have faster rates of molecular evolution than their nonsocial relatives because of greatly reduced effective population size; if most individuals in a ...
Bromham, L., Leys, R.
openaire   +5 more sources

Spatially Segregated Transmission of Co-Occluded Baculoviruses Limits Virus–Virus Interactions Mediated by Cellular Coinfection during Primary Infection

Viruses, 2022
The occlusion bodies (OBs) of certain alphabaculoviruses are polyhedrin-rich structures that mediate the collective transmission of tens of viral particles to the same insect host.
Verónica Pazmiño-Ibarra, Salvador Herrero, Rafael Sanjuan   +2 more
doaj   +1 more source

From social learning to culture : mathematical and computational models of cultural evolution [PDF]

, 2013
Humans are unique in the extent and complexity of their cultures. As a species, we generate extensive knowledge and innumerable norms, attitudes, traditions, skills, beliefs and technologies that we share with those around us through teaching, imitation ...
Fogarty, Laurel
core   +2 more sources

Cooperation and Lateral Forces: Moving Beyond Bottom-Up and Top-Down Drivers of Animal Population Dynamics

Frontiers in Psychology, 2022
Biologists have long known that animal population dynamics are regulated by a combination of bottom-up (resource availability) and top-down forces (predation).
Ying-Yu Chen, Dustin R. Rubenstein, Sheng-Feng Shen, Sheng-Feng Shen   +3 more
doaj   +1 more source

Cooperation and the evolution of intelligence [PDF]

, 2012
The high levels of intelligence seen in humans, other primates, certain cetaceans and birds remain a major puzzle for evolutionary biologists, anthropologists and psychologists.
Jackson, Andrew L., Brown, Sam P., McNally, Luke   +2 more
core   +1 more source

Fitness consequences of outgroup conflict

eLife, 2022
In social species across the animal kingdom, conspecific outsiders threaten the valuable resources of groups and their members. This outgroup conflict is recognised as a powerful selection pressure, but we argue that studies explicitly quantifying the ...
Ines Braga Goncalves, Amy Morris-Drake, Patrick Kennedy, Andrew N Radford   +3 more
doaj   +1 more source

Evidence of neolithic cannibalism among farming communities at El Mirador cave, Sierra de Atapuerca, Spain

Scientific Reports
In El Mirador cave in Sierra de Atapuerca, Spain, a unique collection of human remains provides insights into cannibalistic practices from the Neolithic to the Bronze Age.
Palmira Saladié, Francesc Marginedas, Juan Ignacio Morales, Josep María Vergès, Ethel Allué, Isabel Expósito, Marina Lozano, Patricia Martín, Javier Iglesias-Bexiga, Marta Fontanals, Roser Marsal, Raquel Hernando, Aitor Burguet-Coca, Antonio Rodríguez-Hidalgo   +13 more
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

Coxsackieviruses Undergo Intercellular Transmission as Pools of Sibling Viral Genomes Associated to Membranes

Proceedings, 2020
Some viruses are released from cells as pools of membrane-associated virions. By increasing the multiplicity of infection, this type of collective dispersal could favor viral cooperation, but also the emergence of cheater-like viruses, such as defective ...
Juan-Vicente Bou, Ron Geller, Rafael Sanjuán   +2 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source