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The original was posted on /r/science by /u/Shiny-Tie-126 on 2023-08-11 14:17:37.

Original Title: Microscopic plastic particles have been found in the fats and lungs of two-thirds of the marine mammals in a study of ocean microplastics. The presence of polymer particles and fibers in these animals suggests that microplastics can travel out of the digestive tract and lodge in tissues