Add Yahoo as a preferred source to see more of our stories on Google. We've done it to ourselves and to man's best friend — researchers have found microplastics in human and canine testes. (Allen J.

The testicles, or testes, are important for the production and storage of sperm until they’re mature enough for ejaculation. They also produce testosterone, which is responsible for sex drive, ...

In a recent study posted to the medRxiv* pre-print server, researchers used a suite of methods to detect severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the testis of patients who died ...

Researchers at the University of Texas Medical Branch have observed that SARS-CoV-2, the virus that causes COVID-19, can infect the testes of infected hamsters. The findings, published in the journal ...

The word “testify” reputedly stems from an ancient Roman custom: A man would clutch his testicles in his right hand before giving evidence in court. Certainly, the Latin word testis originally meant ...

When competition for females is fierce, males of some species have evolved bigger testes to trounce their rivals, a new study has confirmed. Specifically, the research shows that testicle size matters ...

Male rodents with shorter breeding seasons tend to have larger testes, probably because the time pressure increases sperm competition between males. Studies have found that males typically have bigger ...

Researchers have located one more anatomical organ where microplastics — of all shapes and constituents — are found: human testes. And although they can’t say for sure, they suspect the presence of ...