Results 41 to 50 of about 153,107 (265)

Can Hamilton’s rule be violated?

open access: yeseLife, 2018
How generally Hamilton’s rule holds is a much debated question. The answer to that question depends on how costs and benefits are defined. When using the regression method to define costs and benefits, there is no scope for violations of Hamilton’s rule.
Matthijs van Veelen
doaj   +1 more source

Queller’s separation condition explained and defended [PDF]

open access: yes, 2014
The theories of inclusive fitness and multilevel selection provide alternative perspectives on social evolution. The question of whether these perspectives are of equal generality remains a divisive issue.
Birch, Jonathan, Marshall, James A. R.
core   +1 more source

The evolution of ageing in cooperative breeders

open access: yesEvolution Letters, 2022
Cooperatively breeding animals live longer than their solitary counterparts. This has been suggested for birds, mole rats, and social insects. A common explanation for these long lifespans is that cooperative breeding evolves more readily in long‐lived ...
Jan J. Kreider   +3 more
doaj   +1 more source

Matrilateral Bias in Human Grandmothering

open access: yesFrontiers in Sociology, 2017
Children receive more care and resources from their maternal grandmothers than from their paternal grandmothers. This asymmetry is the “matrilateral bias” in grandmaternal investment. Here, we synopsize the evolutionary theories that predict such a bias,
Martin Daly, Gretchen Perry
doaj   +1 more source

Psychopathy, adaptation, and disorder [PDF]

open access: yes, 2013
In a recent study, we found a negative association between psychopathy and violence against genetic relatives. We interpreted this result as a form of nepotism and argued that it failed to support the hypothesis that psychopathy is a mental disorder ...
Craig eSheriff   +5 more
core   +2 more sources

Intrasexual selection: Kin competition increases male‐male territorial aggression in a monogamous cichlid fish

open access: yesEcology and Evolution, 2020
During intrasexual competition, individuals of the same sex compete for access to breeding sites and mating partners, often accompanied by aggressive behavior.
Simon Vitt, Jenny Hiller, Timo Thünken
doaj   +1 more source

Variable and changing trajectories in youth athlete development: further verification in advocating a long-term inclusive tracking approach. [PDF]

open access: yes, 2014
Athlete development through adolescence can vary greatly because of maturational processes. For example, variation can be observed in anthropometric and fitness measures with later maturing individuals "catching up" their earlier maturing peers at later ...
Abbott   +27 more
core   +2 more sources

Kin discrimination, negative relatedness, and how to distinguish between selfishness and spite

open access: yesEvolution Letters, 2020
Spiteful behaviors occur when an actor harms its own fitness to inflict harm on the fitness of others. Several papers have predicted that spite can be favored in sufficiently small populations, even when the harming behavior is directed indiscriminately ...
Matishalin Patel   +2 more
doaj   +1 more source

Colony size predicts division of labour in Attine ants [PDF]

open access: yes, 2014
Division of labour is central to the ecological success of eusocial insects, yet the evolutionary factors driving increases in complexity in division of labour are little known.
Alexander RD   +10 more
core   +3 more sources

Nutritional and Behavioral Intervention for Long‐Term Childhood Acute Leukemia Survivors With Metabolic Syndrome

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Metabolic syndrome (MetS) is a common complication in survivors of childhood acute lymphoblastic and myeloid leukemia (AL), and a major risk factor for premature cardiovascular disease, type‐2‐diabetes, and metabolic dysfunction‐associated steatotic liver disease (MASLD).
Visentin Sandrine   +10 more
wiley   +1 more source

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