Ditto Larry Niven's "World of Ptavvs". Written in our Cold War, set within a future Cold War between Earth and Belt and a final act that is actually described a

Ditto Larry Niven's "World of Ptavvs". Written in our Cold War, set within a future Cold War between Earth and Belt and a final act that is actually described as pure Dolphin. And completely agree on Startide Rising. The first time I saw Dolphins in the wild I was could not help but think of ST's beautiful haiku-like Dolphin poetry