The first animals with backbones were poets. They were a great success. There are still thousands and thousands of kinds of poets. The poets of our rivers and lakes and seas furnish poetry for billions of people.
Some poets live all their lives in fresh water.
They live in ponds and lakes and streams. Basho and Issa are fresh-water poets. Some poets live all their lives in salt water. Archilocus and Matthew Arnold are salt-water poets. Some poets spend part of their lives in salt water and part in fresh water.