A non-profit scientific, literary, and educational organization having the purpose of advancing knowledge of male reproductive biology and medicine.

Promotes research and fosters the exchange of ideas among biologists working in tropical environments. Publishes journal Biotropica and co-publishes Tropinet newsletter.

An organization of biological and physical scientists, physicians and engineers interested in the interactions of non-ionizing radiation with biological systems.

A coalition of independent member societies that serve the interests of biomedical and life scientists, particularly those related to public policy issues.

Promotes diatom studies throughout the world, publishes the journal Diatom Research. Information about the organization and internet links.

Presentation of the goal and action of this organization, its publications, news, annual conference, and scientific program.