Why are bugs able to walk on water?

Not all bugs can walk on water. Particularly famous for doing so though is the water strider (Garridae). They utilize the natural surface tension of water (caused by cohesion of water molecules), combined with their small size and light weight, to be able to stand on the water. read more

Humans cannot, under normal circumstances, either walk on water or climb up smooth vertical surfaces. But many animals, such as small lizards, snails, slugs and arthropods, easily clamber up walls or hang from the undersides of smooth leaves. A few, including fishing spiders and water striders, habitually walk on the surface of water. read more

The amazing water strider doesn't just walk on water. It skips across it with the grace of an Olympic skater and the power of a hockey player. The insect dances up and down to avoid being submerged by raindrops, and it can pack 15 times its body weight without sinking. read more