Nature does not reward politeness, and being a male or female doesn't change that rule either. Across the animal kingdom, the ...

It’s not just about chromosomes. Or reproductive cells. Or any other binary metric. Many genetic, environmental and developmental variations can produce what are thought of as masculine and feminine ...

In the debate over human origins and the nature of sexual reproduction, religious and scientific perspectives often diverge. The Bible claims man came first, with women derived from man’s rib. Yet, ...

The ocean is home to a vast array of different animals, each with its own traits. These include different forms of mating, ...