Some researchers say that men can have ‘women’s brains’ and that women can think more like men. Find out more about ‘brain sex’ differences by taking the Sex ID test, a series of visual challenges and questions used by psychologists in the BBC One television series Secrets of the Sexes:

The Nature Conservancy protects Earth’s natural resources and beauty. Our conservation efforts are driven by our members. Act Now.

Nature definition, the material world, especially as surrounding humankind and existing independently of human activities. See more.

Homosexual behavior in s is sexual behavior among non-human species that is interpreted as homosexual or bisexual.This may include same-sex sexual activity, courtship, affection, pair bonding, and parenting among same-sex pairs.

One of the basic properties of life is reproduction, the capacity to generate new individuals, and sex is an aspect of this process. Life has evolved from simple stages to more complex ones, and so have the reproduction mechanisms.

Read and acknowledge the disclaimer at the bottom of page. Informational Only. The California Department of Justice has not considered or assessed the specific risk that any convicted sex offender displayed on this website will commit another offense or the nature of any future crimes that may be committed.

The Museum of Sex, also known as MoSex, is a sex museum located at 233 Fifth Avenue at the corner of East 27th Street in Manhattan, New York City.

The Women’s Health Research Institute provides a broad array of programs that help researchers make new dicoveries, let scholars educate scientists of the future, and help all women receive better, more personalized healthcare.

Watch full episodes of wildlife & natural history public TV series

Find out about your brain, organs, nervous system, muscles and skeleton and get to know yourself better with our psychological tests.