The National Institutes of Health (NIH) is offering a grant opportunity titled "Utilizing Equipment to Study Environmental Extrinsic Factors and Enhance Rigor and Reproducibility of Animal Research (R24, Clinical Trials Not-Allowed)." This initiative invites applications from core facilities, resource centers, and individual investigators to acquire modern equipment that can systematically study the impact of environmental extrinsic factors on animal research, with a focus on enhancing the rigor and reproducibility of such studies. The program supports research that evaluates biological processes affecting multiple organ systems and is relevant to at least two NIH Institutes or Centers, emphasizing the importance of diverse approaches to improve animal health and research integrity. Eligible applicants can receive funding of up to $400,000 annually for a duration of up to four years, with applications due by September 25, 2026. For further inquiries, interested parties can contact NIH Grants Information at grantsinfo@nih.gov or visit the opportunity's webpage at https://grants.nih.gov/grants/guide/pa-files/PAR-24-167.html.