SciAgentsDiscovery is a system that automates scientific research using multi-agent systems and large-scale ontological knowledge graphs. By integrating large language models, data retrieval tools, and multi-agent learning systems, it autonomously generates and refines research hypotheses, revealing potential mechanisms, design principles, and unexpected material properties. The system demonstrates its ability to discover interdisciplinary relationships, particularly in the field of bio-inspired materials, surpassing traditional human-driven research methods.