Exploring the importance of biological categories in women's sports and the implications of undefined sex definitions.

The Y chromosome is inherited only through the paternal line. Sons receive their Y chromosome exclusively from their father.

The UK Supreme Court's definition of a woman in equalities law has significant implications for transgender people.

We don’t experience the world through neat, separate senses—everything blends together. Smell, touch, sound, sight, and balance constantly influence one another, shaping how food tastes, objects feel, ...

Many Christians believe that life begins at the moment of conception – egg and sperm come together creating the new, unique ...

Dr Siddhant Bhargava pointed out that India’s biggest cricketers, who have played under extreme pressure for years, are fathers to daughters.

Tel Aviv University researchers say abnormal chromosomes help breast cancer to metastasize to the brain; study could help ...

We humans have long viewed ourselves as the pinnacle of evolution. People label other species as “primitive” or “ancient” and ...

In aging research, so-called hallmarks of aging have been established. They describe fundamental biological changes that gradually develop over a lifetime. Exercise is considered a factor that can ...

The controversial boxer sat down with a French newspaper, where she revealed that she's intersex and takes hormones to keep ...

Across almost every country on Earth, women can expect to live several years longer than men, a gap that has stubbornly ...

For almost two decades, scientists have debated whether sponges or comb jellies are the first animal lineage. Now some are ...