Water Strider
They are anatomically built to transfer weight and run on water’s surface using surface tension. This is accomplished because they have 1000 hairs per millimeter on their body, which provides water resistance and allows them to walk across the water.
Their middle legs are used for rowing and back legs are for steering.
Their front legs have claws in the “knees'' for puncturing prey. They also can sense vibrations when insects fall into the water.
They eat by puncturing prey with claws and sucking out the nutrients.
Water striders mark their territory with vibrations.