Molecular dynamics (MD) simulations are employed to investigate how biological systems achieve strong and reversible adhesion in wet environments. Particular attention is given to bacterial adhesion proteins that form catch bonds—non-covalent interactions whose lifetimes increase under applied force. These systems are modeled at the molecular level to understand the conformational dynamics responsible for force-enhanced binding, with the goal of translating these mechanisms into synthetic underwater adhesive materials that replicate nature’s performance under aqueous conditions.