Results 51 to 60 of about 154,113 (272)
Altruism can proliferate through group/kin selection despite high random gene flow [PDF]
The ways in which natural selection can allow the proliferation of cooperative behavior have long been seen as a central problem in evolutionary biology. Most of the literature has focused on interactions between pairs of individuals and on linear public
A Gardner +53 more
core +8 more sources
Chronometry for the chorusing herd: Hamilton's legacy on context-dependent acoustic signalling—a comment on Herbers (2013) [PDF]
Biology Letters’ special feature on Hamilton’s legacy pays due tribute to a brilliant mind. Herbers [1] and the other contributors paint a compelling picture of how Hamilton’s work on inclusive fitness anticipated much contemporary evolutionary thinking,
Ravignani, A.
core +1 more source
Can Hamilton’s rule be violated?
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
Psychopathy, adaptation, and disorder [PDF]
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
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The evolution of ageing in cooperative breeders
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
When resistance is useless: policing and the evolution of reproductive acquiescence in insect societies [PDF]
In social groups composed of kin, inclusive fitness benefits can favor greater cooperation. Alternatively, cooperation can be enforced through the policing of less cooperative individuals.
Hart, A.G. +2 more
core +2 more sources
Matrilateral Bias in Human Grandmothering
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
The Abduction of Disorder in Psychiatry [PDF]
The evolutionary cornerstone of J. C. Wakefield's (1999) harmful dysfunction thesis is a faulty assumption of comparability between mental and biological processes that overlooks the unique plasticity and openness of the brain?s functioning design.
Hinshaw, Stephen P., Richters, John E.
core +1 more source
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
Kin discrimination, negative relatedness, and how to distinguish between selfishness and spite
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

