Coda-9994

Ouroboros is a world of ocean, one with no beginning, no end, and no plastic. Coda-9994, an intelligent, technologically-enhanced sperm whale, has been sent to explore the planet and assess its habitability for humans. He is the future of humanity - yet he is as disposable as their plastic.

For National Geographic's #planetorplastic writing contest. This story now has a full-length expansion in the works. You can read it here. https://www.wattpad.com/story/185434818-ouroboros