How do insects such as pond skater stay afloat on water?

Insects like pond skaters stay afloat on water primarily due to surface tension. Their long legs distribute their weight over a larger area, preventing them from breaking the surface tension of the water. Additionally, their legs are covered with tiny hairs that repel water, further aiding in their ability to walk on the surface. This combination of physical adaptations allows them to move gracefully across the water without sinking.