The National Institutes of Health (NIH) is offering a funding opportunity for exploratory research grants (R21) aimed at developing animal models and biological materials for Down syndrome (DS) research. This initiative, part of the INCLUDE Project, seeks to enhance understanding of co-occurring conditions associated with DS and improve health outcomes for affected individuals through innovative research. Eligible applicants, including higher education institutions, nonprofits, and local governments, can request up to $200,000 for a single year, with a total project period not exceeding two years. Interested parties should submit their applications by January 7, 2026, and can direct inquiries to NIH Grants Information at grantsinfo@nih.gov.