THE effect on spermatozoa of vitrification at temperatures of –79° C. and below has been studied by several authors. Human spermatozoa appear to be the most resistant ; a substantial proportion ...

How Fish Is Made is not about fish and it is not about how they are made, which in real life is—I understand—a complex ...

However, only the left Mullerian duct (and usually only the left ovary) develops. Male reproductive system is straightforward. Testes - composed of seminiferous tubules which produce large numbers of ...

The next stage in Professor Barratt’s research was to look at a very specific part of spermatozoa called the CatSper channel, “a very complicated ion channel that allows calcium as a ...

High caffeine intake may cause DNA abnormalities in spermatozoa, impacting both sperm quality and motility. Men trying to ...

Russian soldiers called up to fight in Ukraine will have the chance to store frozen sperm in a cryobank for free, according to a leading Russian lawyer. Russian Union of Lawyers head Igor Trunov ...

The Tanya compacts four millennia of Jewish wisdom to answer the great personal and existential questions of life. It has ...

“Spermatozoa not found” – which is what the report says – can never be grounds to dismiss rape, she says. Sinha adds that ...

Nonobstructive azoospermia (NOA) affects 5%–15% of men undergoing infertility evaluation, accounting for nearly 60% of ...

Ukraine is suffering from more than a Russian invasion. Births have plummeted. But many families with help from the ...