Core Viewpoint - The article discusses a groundbreaking development in soft robotics, where a single type of elastic resin is used to create robots with varying stiffness and flexibility, mimicking biological structures and functions [2][4][18]. Group 1: Technological Breakthroughs - The research team from EPFL developed a method to achieve stiffness variations from 25 kPa to 50 MPa using a single material, covering a range similar to biological soft tissues [4][5]. - The team introduced two core technologies: Topological Regulation (TR) for continuous material performance gradients and Stacking Programming (SP) for creating diverse performance combinations [8][11]. - The TR method allows for a smooth transition in material properties, enabling designs that can vary in stiffness along different sections, such as the elephant's trunk [10][15]. Group 2: Applications and Innovations - The developed soft robotic structures can perform complex tasks, such as the elephant robot that can lift objects up to 500 grams, which is over three times its own weight [15][16]. - The research demonstrates the potential for creating bio-inspired robots that can swim or perform intricate movements, integrating sensors and other smart components into the design [19][20]. - The findings challenge traditional engineering principles by showing that complex functionalities can be achieved with simpler materials, potentially revolutionizing the field of robotics [18][19].