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The Evolution of Sex Differences

Sex
Men’s Advantages in Spatial Cognition & Mechanical Reasoning

David Geary Ph.D. on October 26, 2019

Some of the spatial abilities in which boys and men have an advantage appear to contribute to the ability to visualize how objects might be used as tools.

Some of the spatial abilities in which boys and men have an advantage appear to contribute to the ability to visualize how objects might be used as tools.

Sex
Boys’ and Girls’ Culture

David Geary Ph.D. on October 17, 2019

Why do boys and girls (and men and women) have different kinds of friendships?

Why do boys and girls (and men and women) have different kinds of friendships?

Marriage
Women’s Mate Choices Across Cultures

David Geary Ph.D. on July 6, 2019

Some aspects of women's preferences for a would-be husband are universal and others vary across contexts.

Some aspects of women's preferences for a would-be husband are universal and others vary across contexts.

Parenting
Men’s Parenting

David Geary Ph.D. on February 19, 2019

What gets men to commit and stay committed to marriage and children?

What gets men to commit and stay committed to marriage and children?

Parenting
Men's Parenting

David Geary Ph.D. on January 14, 2019

Why do men invest in their children, when male parenting is so uncommon among mammals?

Why do men invest in their children, when male parenting is so uncommon among mammals?