If fish live in a world we don't understand, with different senses and realities, how can we truly know what it means to be a fish, and does our limited understanding affect our treatment of them?

They have their own way of life. The ocean is vast, the majority of our planet is water. There are so many fish we don’t even know about.

We treat them badly, polluting their homes. It is terrible. We do it to ourselves, also.

Are fish and humans one in the same?