Water striders are insects known for their unique ability to walk on the surface of water. They belong to the family Gerridae and are commonly found on ponds, lakes, and slow-moving streams. Their long legs are specially adapted to distribute their weight, allowing them to stay on the water's surface without sinking. These insects primarily feed on small insects that fall onto the water. Using their keen eyesight, water striders can detect ripples caused by prey and quickly move to capture it. They play an important role in the aquatic ecosystem by helping control insect populations and serving as food for larger animals like fish and birds.