Results 11 to 20 of about 901,958 (279)

Extraordinary siblings: Mole rats, marmosets, and Radcliffe-Brown. [PDF]

open access: yesPLoS ONE
According to the theory of kin selection, an organism that shows some level of altruism toward her kin - lowering her own fitness, raising that of a close genetic relative - may enjoy an evolutionary advantage.
Doug Jones
doaj   +2 more sources

Gut microbiota alterations in golden snub-nosed monkeys during food shortage and parturition-nursing periods [PDF]

open access: yesFrontiers in Microbiology
Adopting unique survival strategies during spring food shortages and simultaneous parturition and nursing is crucial for golden snub-nosed monkeys. Social behaviors, such as altruism within one-male units (OMUs), are decisive for family health, but the ...
Guanwei Lan   +15 more
doaj   +2 more sources

A personal cost of cheating can stabilize reproductive altruism during the early evolution of clonal multicellularity

open access: yesBiology Letters, 2022
Understanding how cooperation evolved and is maintained remains an important and often controversial topic because cheaters that reap the benefits of cooperation without paying the costs can threaten the evolutionary stability of cooperative traits ...
Marybelle E. Cameron-Pack   +4 more
semanticscholar   +1 more source

The evolution of altruism and the units of selection problem

open access: yesTheoria Beograd, 2022
In this paper, I will address one of the main issues in the philosophy of biology: the evolution of altruism and cooperation and the related problem of the units of selection.
Igor Zivanovic
semanticscholar   +1 more source

Research status and development trend of altruism in the biological field - knowledge graph analysis based on CiteSpace

open access: yesJournal of Biology and Medicine, 2022
Based on the visualization analysis of foreign literature on altruistic behavior in recent ten years (2012-2022) by CiteSpace, it is found that the research on altruistic behavior in the field of biology abroad has experienced the initial exploratory ...
Jia Li, Zhu Xianglei, X. Guoliang
semanticscholar   +1 more source

What, If Anything, Is Biological Altruism?

open access: yesBritish Journal for the Philosophy of Science, 2021
The study of biological altruism is a cornerstone of modern evolutionary biology. Associated with foundational issues about natural selection, it is often supposed that explaining altruism is key to understanding social behaviour more generally ...
Topaz Halperin, Arnon Levy
semanticscholar   +1 more source

Coevolution of cooperation, causal cognition and mindreading

open access: yesCommunicative & Integrative Biology, 2010
The evolution of cooperation between unrelated individuals has long been a puzzle in evolutionary biology. Formal models show that reciprocal altruism is approximately as stable as kin-based altruism when cooperators can assort.
H. Clark Barrett   +2 more
doaj   +1 more source

Altruism across disciplines: one word, multiple meanings [PDF]

open access: yes, 2012
Altruism is a deep and complex phenomenon that is analysed by scholars of various disciplines, including psychology, philosophy, biology, evolutionary anthropology and experimental economics.
Chapuisat, M., Clavien, C.
core   +2 more sources

Social evolution under demographic stochasticity.

open access: yesPLoS Computational Biology, 2019
How social traits such as altruism and spite evolve remains an open question in evolutionary biology. One factor thought to be potentially important is demographic stochasticity.
David V McLeod, Troy Day
doaj   +1 more source

Balancing collective responsibility, individual opportunities and risks: a qualitative study on how police officers reason around volunteering in an HIV vaccine trial in Dar es Salaam, Tanzania

open access: yesBMC Public Health, 2010
Background Results from HIV vaccine trials on potential volunteers will contribute to global efforts to develop an HIV vaccine. The purpose of this study among police officers in Dar es Salaam, Tanzania, was to explore the underlying reasons that induce ...
Bakari Muhammad   +6 more
doaj   +1 more source

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