Biological differences between men and women contribute to many sex-specific illnesses
and disorders. Historically, it was argued that such differences were largely, if not …

Recent findings suggest that sexual orientation has an early neurodevelopmental basis.
Handedness, a behavioral marker of early neurodevelopment, has been associated with …

Where did we come from? What is our connection with other life forms? What are the
mechanisms of mind that define what it means to be a human being? Evolutionary …

Behavioral Genetics, Fifth Edition provides an engaging and clear overview of human and
animal behavioral genetics that is designed to introduce students in the behavioral …

This engaging text presents the latest scientific findings on gender differences, similarities,
and variations--in sexuality, cognitive abilities, occupational preferences, personality, and …

We recruited twins systematically from the Australian Twin Registry and assessed their
sexual orientation and 2 related traits: childhood gender nonconformity and continuous …

Background It has been suggested that homosexuality is associated with psychiatric
morbidity. This study examined differences between heterosexually and homosexually …

What causes a child to grow up gay or straight? Neuroscientist Simon LeVay summarizes a
wealth of scientific evidence that points to one inescapable conclusion: Sexual orientation …

The Fourth Edition of Statistics: A Gentle Introduction shows students that an introductory
statistics class doesn't need to be difficult or dull. This text minimizes students' anxieties …

Few topics are as complex and controversial as human sexual orientation and gender
identity. These matters touch upon our most intimate thoughts and feelings, and help to …