Infinity symbol containing molecules, bees, forests, and cities

Directorate for Biological Sciences (BIO)

The U.S. National Science Foundation Directorate for Biological Sciences (NSF BIO) supports research and education that advances the understanding of all forms of life and their components at all scales — from molecules to ecosystems and across space and time.

Recent funding opportunities

Program
Next Required Due Date: Proposals Accepted Anytime
Posted August 13, 2026
Dear Colleague Letter
Next Required Due Date: See letter for details
Posted July 22, 2026
Program
Next Required Due Date: November 4, 2026
Posted July 21, 2026
Program
Next Required Due Date: September 29, 2026
Posted February 5, 2026

What we support

A map of the fruit fly brain

Core biological sciences research

Advancing fundamental understanding of biological systems at all scales of organization, ranging from molecules to organisms to ecosystems.

A person with a hard hat examining a tree in the woods.

Workforce development

Funding development of the biological sciences workforce through education and training at multiple career stages.

Researchers look into a microscope in a darkened room.

Additional initiatives and infrastructure

Supporting research and partnerships to advance biological discovery and infrastructure capacity.

Upcoming events

Q&As and information sessions
Program directors provide information and answer questions about newly issued funding opportunities.
Q&As and information sessions
Please join the U.S. National Science Foundation Directorate for Biological Sciences for a directorate-wide virtual office hour.