Water as an environment of existence

Water is an environment of existence which hugely differs between organisms.

This refers to how organisms like humans conduct actions and activities with water that are essential for survival or culture.

We humans don't need water to survive, we only ingest it. But other creatures can only live in it as an environment and nowhere else. Thus, our activities are entirely different.

For instance, dolphin cultures and human cultures vary deeply despite both being social creatures. They are shown to grieve without graveyards, and have shared memory despite no shared religion.

These creatures are communicating species that are radically other than us.

Due to these differences, the only way humans survive in water is with technology. We have to be technically mediated in a way that water-living species do not.