World Oceans Day | Some interesting knowledge points! How much whale excrement is there in the ocean? World Oceans Day | Some interesting knowledge points! How much whale excrement is there in the ocean? World Oceans Day | Some interesting knowledge points! How much whale excrement is there in the ocean? World Oceans Day | Some interesting knowledge points! How much whale excrement is there in the ocean? Source: Popular Science China Editor: Meat Review: cc Editor-in-Chief: Bu Jianjian World Oceans Day | Some interesting knowledge points! How much whale excrement is there in the ocean? World Oceans Day | Some interesting knowledge points! How much whale excrement is there in the ocean?