Sperm

Health

New discovery reveals how the egg controls sperm entry

After the egg has been fertilized by a sperm, the surrounding egg coat tightens, mechanically preventing the entry of additional…

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Environment

Sperm whale dies after being stranded on Florida beach | Whales

A sperm whale who became stranded on a Florida beach over the weekend has died, state’s fish and wildlife conservation…

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Health

How does a virus hijack insect sperm to control disease vectors and pests?

A widespread bacteria called Wolbachia and a virus that it carries can cause sterility in male insects by hijacking their…

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Health

Toward understanding sperm quality | ScienceDaily

A novel screening system developed at Kyoto University enables researchers to investigate sperm cell development and health at the molecular…

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Health

Sperm Donors May Not Be as Anonymous as They Think

In 2018, Michael B. Greene, PhD, received a letter that took his breath away. A woman who might be his…

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