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The original was posted on /r/todayilearned by /u/tyrion2024 on 2024-07-22 05:41:14+00:00.

Original Title: TIL a study tested 23 human testes & 47 pet dog testes and found microplastics in every sample. The human testicles had a plastic concentration almost three times higher than that found in the dog testes: 330 micrograms per gram of tissue compared with 123 micrograms.