This study tests several hypotheses that men and women are differentially invested in their partner's sexual fidelity. Using a cross-cultural sample authors analyze women's and men's responses to sexual infidelity.

This study focuses on spousal responses to extramarital affairs cross-culturally. Results suggest that men and women are equally concerned with the sexual activities of their spouses, however, tactics used in response to infidelity vary by gender. Results also show a relationship between social complexity and responses to infidelity.

This study focuses on spousal responses to extramarital affairs cross-culturally. Results suggest that men and women are equally concerned with the sexual activities of their spouses, however, tactics used in response to infidelity vary by gender. Results also show a relationship between social complexity and responses to infidelity.

This study tests several hypotheses that men and women are differentially invested in their partner's sexual fidelity. Using a cross-cultural sample authors analyze women's and men's responses to sexual infidelity.

This study focuses on spousal responses to extramarital affairs cross-culturally. Results suggest that men and women are equally concerned with the sexual activities of their spouses, however, tactics used in response to infidelity vary by gender. Results also show a relationship between social complexity and responses to infidelity.

This study focuses on spousal responses to extramarital affairs cross-culturally. Results suggest that men and women are equally concerned with the sexual activities of their spouses, however, tactics used in response to infidelity vary by gender. Results also show a relationship between social complexity and responses to infidelity.

This study focuses on spousal responses to extramarital affairs cross-culturally. Results suggest that men and women are equally concerned with the sexual activities of their spouses, however, tactics used in response to infidelity vary by gender. Results also show a relationship between social complexity and responses to infidelity.

This study tests several hypotheses that men and women are differentially invested in their partner's sexual fidelity. Using a cross-cultural sample authors analyze women's and men's responses to sexual infidelity.

This study tests several hypotheses that men and women are differentially invested in their partner's sexual fidelity. Using a cross-cultural sample authors analyze women's and men's responses to sexual infidelity.

The authors examine a world-wide sample of cultures to assess whether the romantic-sexual kiss is a human universal. They also test for an association between romantic-sexual kissing and social complexity.