Results 11 to 20 of about 86,880,462 (131)

Adolescents’ preferences for sexual dimorphism are influenced by relative exposure to male and female faces [PDF]

open access: yes, 2009
Exposure to a particular population of faces can increase ratings of the normality and attractiveness of similar-looking faces. Such exposure can also refine the perceived boundaries of that face population, such that other faces are more readily ...
Jones, Benedict   +17 more
core   +1 more source

Cryptic male choice: sperm allocation strategies when female quality varies [PDF]

open access: yes, 2002
Reinhold K, Kurtz J, Engqvist L. Cryptic male choice: sperm allocation strategies when female quality varies. Journal of Evolutionary Biology. 2002;15(2):201-209.We examined evolutionary stable sperm allocation and included stochastic variation in male ...
Reinhold, Klaus   +2 more
core   +1 more source

The male to female ratio at birth [PDF]

open access: yes, 2014
The factors that influence the male to female ratio at birth are legion. Males are usually born in excess and stress decreases the ratio while wellbeing and good health tends to increase it.
Mamo, Julian, Grech, Victor E.
core   +1 more source

Female chimpanzees use copulation calls flexibly to prevent social competition [PDF]

open access: yes, 2008
The adaptive function of copulation calls in female primates has been debated for years. One influential idea is that copulation calls are a sexually selected trait, which enables females to advertise their receptive state to males. Male-male competition
Deschner, Tobias   +10 more
core   +2 more sources

An overview of the literature on female-perpetrated adult male sexual victimization [PDF]

open access: yes, 2013
The rape of women has been an issue of concern in research literature for the past 40 years. Conversely, rape against men has only relatively recently received investigation.
Fisher, Nicola L., Pina, Afroditi
core   +1 more source

Theoretical influence of female mating status and remating propensity on male sperm allocation patterns [PDF]

open access: yes, 2006
Engqvist L, Reinhold K. Theoretical influence of female mating status and remating propensity on male sperm allocation patterns. JOURNAL OF EVOLUTIONARY BIOLOGY.
Reinhold, Klaus   +3 more
core   +1 more source

Promiscuous expression of α-tubulin II in maturing male and female Plasmodium falciparum gametocytes. [PDF]

open access: yes, 2010
BACKGROUND: Antimalarial interventions designed to impact on the transmissible sexual stages of Plasmodium falciparum are evaluated by measurement of peripheral gametocyte carriage in vivo and infectivity to mosquitoes.
Sutherland, Colin J   +10 more
core   +2 more sources

An exploratory investigation examining male and female students' initial impressions and expectancies of lecturers [PDF]

open access: yes, 2013
The aim of this study was to examine the informational cues that male and female students perceive to be influential when developing initial impressions and expectancies of a lecturer.
Smith, Matthew   +14 more
core   +1 more source

Female aggression and male peace-keeping in a cichlid fish harem: conflict between and within the sexes in Lamprologus ocellatus [PDF]

open access: yes, 1994
Walter B, Trillmich F. Female aggression and male peace-keeping in a cichlid fish harem: conflict between and within the sexes in Lamprologus ocellatus. Behavioral Ecology and Sociobiology.
Trillmich, Fritz ; https://orcid.org/   +1 more
core   +1 more source

Determinants of sperm transfer in the scorpionfly Panorpa cognata: male variation, female condition and copulation duration [PDF]

open access: yes, 2003
Engqvist L, Sauer KP. Determinants of sperm transfer in the scorpionfly Panorpa cognata: male variation, female condition and copulation duration. Journal of Evolutionary Biology.
Sauer, Klaus Peter   +1 more
core   +1 more source

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