Sex in an Evolutionary Perspective: Just Another Reaction Norm
... Among humans and some other animals with culture, the culture further affects behaviour and morphology, in another level of plasticity. If men are more expected to choose physically demanding jobs or work out by lifting weights than women, this will for instance obviously increase any physical diffe ...
... Among humans and some other animals with culture, the culture further affects behaviour and morphology, in another level of plasticity. If men are more expected to choose physically demanding jobs or work out by lifting weights than women, this will for instance obviously increase any physical diffe ...
Pair-Bonding Strategies
... who tend to form longer-lasting, monogamous relationships. More mature and older adults are more likely to form long-term pair-bonds than are younger and more immature adults. This type of pairbond is more akin to abiding love than limerence is. It is not infatuational, obsessive, and delusional, as ...
... who tend to form longer-lasting, monogamous relationships. More mature and older adults are more likely to form long-term pair-bonds than are younger and more immature adults. This type of pairbond is more akin to abiding love than limerence is. It is not infatuational, obsessive, and delusional, as ...
Remember – The Caya® diaphragm does not protect against STIs
... at the time of being published. As information and knowledge is constantly changing, readers are strongly advised to confirm that the information complies with present research, legislation and policy guidelines. True accepts no responsibility for difficulties that may arise as a result of an indivi ...
... at the time of being published. As information and knowledge is constantly changing, readers are strongly advised to confirm that the information complies with present research, legislation and policy guidelines. True accepts no responsibility for difficulties that may arise as a result of an indivi ...
When Are Adult-Child Sexual Encounters Acceptable?
... comparison to female victims, male victims are usually slightly older (e.g., three to four months older) at onset of sexual abuse (Ames & Houston, 1990). In a telephone sample survey of 2,626 males and females, 43% of total respondents (both male and female) reported experiencing sexual abuse as a c ...
... comparison to female victims, male victims are usually slightly older (e.g., three to four months older) at onset of sexual abuse (Ames & Houston, 1990). In a telephone sample survey of 2,626 males and females, 43% of total respondents (both male and female) reported experiencing sexual abuse as a c ...
Climate adaptation and speciation: particular focus on reproductive
... Climate adaptation is surprisingly rarely reported as a cause for the build-up of reproductive isolation between diverging populations. In this review, we summarize evidence for effects of climate adaptation on pre- and postzygotic isolation between emerging species with a particular focus on pied ( ...
... Climate adaptation is surprisingly rarely reported as a cause for the build-up of reproductive isolation between diverging populations. In this review, we summarize evidence for effects of climate adaptation on pre- and postzygotic isolation between emerging species with a particular focus on pied ( ...
Differences in Pelvic Fin Length Represent Sexual Dimorphism in
... dimorphism arises, it is possible that sexual selection is the cause of the dimorphism and that the presence of a predator acts in opposition to this form of selection. For example, in the Trinidad guppy, Poecilia reticulata, females selectively choose brightly colored males in a predator free envir ...
... dimorphism arises, it is possible that sexual selection is the cause of the dimorphism and that the presence of a predator acts in opposition to this form of selection. For example, in the Trinidad guppy, Poecilia reticulata, females selectively choose brightly colored males in a predator free envir ...
Sexually transmitted diseases
... •There are 2 types of HSV: HSV-1 and HSV-2. •Most cases of genital herpes are HSV-2. •Both types can be passed from mother to newborn during birth if the mother has genital sores at that time. •Symptoms in both males and females: •HSV-1: cold sores and fever blisters around the mouth *Many people wi ...
... •There are 2 types of HSV: HSV-1 and HSV-2. •Most cases of genital herpes are HSV-2. •Both types can be passed from mother to newborn during birth if the mother has genital sores at that time. •Symptoms in both males and females: •HSV-1: cold sores and fever blisters around the mouth *Many people wi ...
Eye Tracking of Men`s Preferences for Female Breast Size and
... A total of 37 heterosexual men of European descent, ranging in age from 22 to 47 years (M = 30.05 years; SD = 6.21), were recruited opportunistically from the staff and post-graduate student body at Victoria University. Ten of these men were married. Participants were given individual verbal briefin ...
... A total of 37 heterosexual men of European descent, ranging in age from 22 to 47 years (M = 30.05 years; SD = 6.21), were recruited opportunistically from the staff and post-graduate student body at Victoria University. Ten of these men were married. Participants were given individual verbal briefin ...
ORIGINAL RESEARCH—EJACULATORY DISORDERS Premature
... Introduction. Premature ejaculation (PE) is the most common male sexual dysfunction affecting men and their partners. Lack of community-based data describing this condition limits understanding of PE and its outcomes. Aim. To characterize PE in a large population of men with and without PE using pat ...
... Introduction. Premature ejaculation (PE) is the most common male sexual dysfunction affecting men and their partners. Lack of community-based data describing this condition limits understanding of PE and its outcomes. Aim. To characterize PE in a large population of men with and without PE using pat ...
BMC Evolutionary Biology
... In basidiomycetous fungi, morphological sexual differentiation is absent, but mating is regulated by complex mating systems, generating in some cases large numbers of different mating types. Also here, the mating type genes control sexual fusion and post-fusion development [8]. Again, mating cannot ...
... In basidiomycetous fungi, morphological sexual differentiation is absent, but mating is regulated by complex mating systems, generating in some cases large numbers of different mating types. Also here, the mating type genes control sexual fusion and post-fusion development [8]. Again, mating cannot ...
1 Human sex differentiation and its abnormalities
... 46,XX True hermaphroditism and 46,XX gonadal dysgenesis True hermaphroditism refers to the condition in which well-defined testicular tubules occur along with well-defined ovarian follicles in the same individual. Affected individuals may have one gonad that is a testis and the other that is an ovar ...
... 46,XX True hermaphroditism and 46,XX gonadal dysgenesis True hermaphroditism refers to the condition in which well-defined testicular tubules occur along with well-defined ovarian follicles in the same individual. Affected individuals may have one gonad that is a testis and the other that is an ovar ...
"Until Death Do Us Part: Marriage/Death in Anthropological Discourse," featured article: issues in debate, American Ethnologist 23 (2): 215-238*
... apply to it the kind of critiques made of other anthropological objects of inquiry, such as "race" or "the primitive."Most anthropologists either have made marriage secondary or derivative of other units of analysis such as kinship, gender, power, and political economy or, like Rodney Needham in a v ...
... apply to it the kind of critiques made of other anthropological objects of inquiry, such as "race" or "the primitive."Most anthropologists either have made marriage secondary or derivative of other units of analysis such as kinship, gender, power, and political economy or, like Rodney Needham in a v ...
English - WHO/Europe
... whether “sexual active life expectancy” grows in tandem with overall life spans and what are its determinants? These questions have been subject to increasing attention and medical and social interest, slowly contributing to a changing perception of the role of sexual health for active and healthy a ...
... whether “sexual active life expectancy” grows in tandem with overall life spans and what are its determinants? These questions have been subject to increasing attention and medical and social interest, slowly contributing to a changing perception of the role of sexual health for active and healthy a ...
A Cross-Cultural Analysis of the Behavior of Women and Men
... pressures that shaped psychological sex differences emerged from an asymmetry in the sexes’ parental investment. Women, as the sex that invested more in offspring (e.g., through gestation and nursing), became choosier about potential mates than men, the sex that invested less in offspring. As a resu ...
... pressures that shaped psychological sex differences emerged from an asymmetry in the sexes’ parental investment. Women, as the sex that invested more in offspring (e.g., through gestation and nursing), became choosier about potential mates than men, the sex that invested less in offspring. As a resu ...
Motivation And Emotion
... to thousands of items. However, if we say that people have an instinct for sex or for curiosity or for acquisitiveness, we are merely naming the behaviors, not explaining them. However, some motivation seems to be unlearned. As chapter 3 explains, human infants come into the world equipped with a su ...
... to thousands of items. However, if we say that people have an instinct for sex or for curiosity or for acquisitiveness, we are merely naming the behaviors, not explaining them. However, some motivation seems to be unlearned. As chapter 3 explains, human infants come into the world equipped with a su ...
Engaging in the Hookup Culture: A Self
... antonyms in the list of 10 words. If a synonym or antonym was found, the first word was kept, but the antonym or synonym of the word was crossed out. Therefore, a participant could have an actual-self total score of -10 to +20, depending on how many synonyms or antonyms were listed. This same proces ...
... antonyms in the list of 10 words. If a synonym or antonym was found, the first word was kept, but the antonym or synonym of the word was crossed out. Therefore, a participant could have an actual-self total score of -10 to +20, depending on how many synonyms or antonyms were listed. This same proces ...
Poverty and Risky Sexual Behaviours: Evidence from Tanzania
... policy on HIV/AIDS focuses on sensitization campaigns, raising awareness, and the “A,B,C” safer-sex practices (Abstaining, Be faithful to one partner, use a Condom) as central measures for reducing HIV infections in Tanzania (TACAIDS 2008). Despite these policy strategies, the results have not been ...
... policy on HIV/AIDS focuses on sensitization campaigns, raising awareness, and the “A,B,C” safer-sex practices (Abstaining, Be faithful to one partner, use a Condom) as central measures for reducing HIV infections in Tanzania (TACAIDS 2008). Despite these policy strategies, the results have not been ...
... As mentioned before, the results clearly show the diversity of the religions among the participants. The percentages for the participants in each religion are as follows: 43.4% atheist/ agnostic, 35.8% Christian, and 19.1% other. First of all, our results show there is a statistical significance reg ...
GENDER DIFFERENCES IN ATTITUDES AND BEHAVIORS
... (1989) found little distinction between primary and secondary partners during adolescence and that adolescents practice "serial monogamy" varying in duration (a week to several years). Because teenagers and young adults demonstrate high risk sexual behavior due to unprotected intercourse, multiple-p ...
... (1989) found little distinction between primary and secondary partners during adolescence and that adolescents practice "serial monogamy" varying in duration (a week to several years). Because teenagers and young adults demonstrate high risk sexual behavior due to unprotected intercourse, multiple-p ...
The influence of conservation breeding programs on animal
... environment and the information gained may aid managers in supervising the health and welfare of animals under their care (Kleiman et al., 1996; Snowdon, 1989). Shepherdson (1998) suggests that the study of animal behaviour plays a key role in helping us to understand what animals do in different ca ...
... environment and the information gained may aid managers in supervising the health and welfare of animals under their care (Kleiman et al., 1996; Snowdon, 1989). Shepherdson (1998) suggests that the study of animal behaviour plays a key role in helping us to understand what animals do in different ca ...
Sex Differences in the Responses of the Human
... underlying a major sex difference in responses to appetitive visual sexual stimuli, namely, the greater male response to such stimuli. Numerous studies have demonstrated that men are more psychologically and physiologically responsive to visual sexually arousing stimuli and display a greater motivat ...
... underlying a major sex difference in responses to appetitive visual sexual stimuli, namely, the greater male response to such stimuli. Numerous studies have demonstrated that men are more psychologically and physiologically responsive to visual sexually arousing stimuli and display a greater motivat ...
Adolescents are HDEV
... in identity formation occur in college (Berzonsky & Kuk, 2005). College students are exposed to a variety of lifestyles, beliefs, and career choices, which spur consideration of identity issues. Are you a student who has changed majors once or twice (or more)? If so, you have most likely experienced ...
... in identity formation occur in college (Berzonsky & Kuk, 2005). College students are exposed to a variety of lifestyles, beliefs, and career choices, which spur consideration of identity issues. Are you a student who has changed majors once or twice (or more)? If so, you have most likely experienced ...
CHAPTER 3 Affirmative Aging
... treatment (especially of older Americans) because of age. The federal government has age-related protections in place to prevent discrimination against older Americans. ...
... treatment (especially of older Americans) because of age. The federal government has age-related protections in place to prevent discrimination against older Americans. ...
Sexual selection and extinction in deer
... competition. Pre-mating competition between males consists of combat or non-aggressive display and post-mating competition includes sperm competition and/or infanticide. Secondary sexual characters are used in male competitions in the most competitive sex. Traits that influence mating decisions can ...
... competition. Pre-mating competition between males consists of combat or non-aggressive display and post-mating competition includes sperm competition and/or infanticide. Secondary sexual characters are used in male competitions in the most competitive sex. Traits that influence mating decisions can ...
Full text
... does not lead to insemination in all cases, and insemination does not always lead to fertilization. Because sperm is rarely deposited directly onto the eggs by the male, it is ultimately the female that determines if the sperm is utilized to fertilize her eggs in the majority of situations. Sexual s ...
... does not lead to insemination in all cases, and insemination does not always lead to fertilization. Because sperm is rarely deposited directly onto the eggs by the male, it is ultimately the female that determines if the sperm is utilized to fertilize her eggs in the majority of situations. Sexual s ...