The creatures living in the water that has to be adapted to survive in life, such as a slim build. To reduce the flow resistance of some species such as the flat-shaped island. The larvae of some species can stick tightly to the surface to live like insects, worms, sponges and fresh water casing. Some animals can be extracted sticky mucus to grip like a snail Kabediiw planarian, etc. Moreover, some species, such as carp, waterfalls, fish, fishing around fish, antimony, and the water is crystal to change their behavior by. always swimming upstream