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Jealousy and the nature of beliefs about infidelity: Tests of competing hypotheses about sex differences in the United States, Korea, and Japan
The different adaptive problems faced by men and women over evolutionary history led evolutionary psychologists to hypothesize and discover sex differences in jealousy as a function of infidelityExpand
Commensalism or mutualism: conditional outcomes in a branchiobdellid–crayfish symbiosis
The relationship between crayfish and branchiobdellids can fluctuate between commensalism and mutualism depending mainly on the environmental fouling pressure, which may largely depend on the factors directly related to the need for cleaning. Expand
A comparative study of aggressiveness in eastern North American field cricket species (genus Gryllus)
It is argued that the loss of a tendency to use burrows in G. fultoni and G. vernalis might be related to low levels of aggressiveness in these species, which seems to be the ancestral state in the North American Gryllus phylogeny. Expand
The Evolution of Social Behavior in Insects and Arachnids: Acknowledgements
A phylogenetic analysis of the data shows that social evolution in the lepidoptera is driven by ecological context and communication in larval societies, and the role of ecological constraints in wasps and vertebrates is investigated. Expand
Zorotypus gurneyi, new species, from Panama and redescription of Z. barberi Gurney (Zoraptera: Zorotypidae)
A new species of Zoraptera, Zorotypus gurneyi , is described from Panama. It is separated from related species by differences in body size, structure of the male genitalia, chaetotaxy on the apicalExpand
Distress about mating rivals
research tested the evolutionary psychological hypothesis that men and women would be most distressed about threats from rivals who surpass them on sex-linked components of mate value. SixExpand
Origins of parental care in chrysomelid beetles
An insect is considered’ subsocial’ if one or both parents extend care to offspring beyond the egg stage (Michener, 1969; Wilson, 1971, p. 4). Advanced parental care or subsociality has evolvedExpand
The Evolution of Mating Systems in Insects and Arachnids: Sexual conflict and the evolution of mating systems
A single core has an energizing winding and establishes a levitational magnetic field therebelow and opposed electromagnets cause the suspended sphere to rotate as the rotor of an induction motor to provide a gyroscopically stable inertial reference. Expand
Wild birds recognize individual humans: experiments on magpies, Pica pica
The magpie is only the third avian species, along with crows and mockingbirds, in which recognition of individual humans has been documented in the wild, and a new hypothesis is proposed that frequent previous exposure to humans in urban habitats contributes to the ability of birds to discriminate among human individuals. Expand