Diseases, Conditions, Syndromes

Dutch to cull thousands of mink after farm infections

Dutch health officials have ordered the slaughter of around 10,000 mink to start Friday on farms where coronavirus outbreaks have been reported, possibly infecting at least two employees.

Neuroscience

Estrogen's role in the sex differences of alcohol abuse

Fluctuating estrogen levels may make alcohol more rewarding to female mice, according to new research in JNeurosci. Untangling the involved signaling pathways could unveil sex-based treatments for alcohol use disorders.

Diseases, Conditions, Syndromes

Burden of severe COVID-19 high in California, Washington state

(HealthDay)—For residents of California and Washington with COVID-19, the length of hospital stay and intensive care unit (ICU) admission are high, according to a study published online May 22 in The BMJ.

Health

What have we learned about intimate partner violence?

As many states issued stay-at-home orders to contain the spread of COVID-19 across the U.S., police in some areas noticed a spike in reports of domestic violence. Jennifer Hardesty and Brian Ogolsky, both professors of human ...

Health

Women almost twice as likely to choose primary care as men

Analysis of osteopathic medical school survey data reveals women are 1.75 times more likely to choose primary care than men, according to a study in The Journal of the American Osteopathic Association. Researchers sought ...

Gerontology & Geriatrics

Strong relationships promote physical activity in older adults

Relationships are key to influencing positive health behaviors and should not be forgotten during social distancing due to the COVID-19 pandemic. Strong relationships can help adults stay active in older age, according to ...

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Female

Female (♀) is the sex of an organism, or a part of an organism, which produces mobile ova (egg cells). The ova are defined as the larger gametes in a heterogamous reproduction system, while the smaller, usually motile gamete, the spermatozoon, is produced by the male. A female individual cannot reproduce sexually without access to the gametes of a male (an exception is parthenogenesis). Some organisms can reproduce both sexually and asexually.

There is no single genetic mechanism behind sex differences in different species and the existence of two sexes seems to have evolved multiple times independently in different evolutionary lineages. Other than the defining difference in the type of gamete produced, differences between males and females in one lineage cannot always be predicted by differences in another. The concept is not limited to animals; egg cells are produced by chytrids, diatoms, water moulds and land plants, among others. In land plants, female and male designate not only the egg- and sperm-producing organisms and structures, but also the structures of the sporophytes that give rise to male and female plants.

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