Скачать с ютуб Poelschaatsenrijder/Common pond skater (Gerris lacustris) в хорошем качестве

Poelschaatsenrijder/Common pond skater (Gerris lacustris)

Water striders have the ability to move quickly on the water surface and have hydrophobic legs. On average, a water strider can move 1.5 metre per second by paddling forward with the middle pair of legs while the forelegs and hind legs act as a rudder. Waters striders also have the ability to stand effortlessly on water due to their non-wetting legs. Because they have tiny hairs with nanogrooves that cover their bodies, they have a water resistance effect. Water striders rely on surface tension to walk on top of water. Through evolution, water striders have developed a unique arrangement of legs which gives them the gliding ability with greatly elongated med-legs. The Hox gene "ultrabithorax" lengthens legs in insects. If its pool should dry out during a drought, a water strider will travel overland to find wetter pastures to settle in.