What is "web"?

The web is a specialized structure found in the feet of some aquatic birds, including ducks and geese, which helps them swim and maneuver efficiently in water. It refers to the skin membrane that connects the toes of their feet, creating a flat surface that increases the area of contact with the water. The web is composed of skin and connective tissue, and it is supplied with blood vessels and nerves. The webbed feet are also equipped with rough pads on the underside, which provide traction on slippery surfaces, and they can be folded back when the birds are on land. The webbed feet of aquatic birds are a remarkable example of adaptation to the environment, allowing them to thrive in aquatic habitats.