The Department of Defense, specifically the Army, is seeking proposals for the Small Business Innovation Research (SBIR) program focused on the mechanics and control of autonomous legged robotic systems capable of navigating muddy environments. The objective is to develop a quadrupedal robot with a novel control architecture that can traverse deep mud with up to 20% leg intrusion at an average speed of 8 body lengths per minute, surpassing current capabilities. This initiative is critical for enhancing autonomous locomotion in challenging terrains, which has significant implications for military applications and potential dual-use scenarios such as disaster relief and search and rescue operations. Interested parties can submit proposals for Phase I, with funding up to $250,000 for a 6-month period, and must adhere to the application deadline of July 23, 2025. For more information, visit the official solicitation page at DOD SBIR/STTR.