Sex is binary.

Binary is a system composed of two parts.

When it comes to sex there is male and there is female.

There is no third sex (or sixty-seventh, or one hundred and third sex).

Science provides evidence-based facts that are observable and reproducible.

This video is a short but clear explanation of the facts.

Binary spokeswoman, Kirralie Smith, says facts matter.

“Identity, personality traits and personal expression are important. Adults can choose to dress and appear however they like. For a society to function fairly and safely though facts must be the determining factor when it comes law, civic norms and public policy development. Science is the only way that provides reliable, consistent and measurable standards.”