News tagged with females

Related topics: offspring · women · proceedings of the royal society b · sperm · eggs

US regulators to discuss 'female Viagra'

A drug nicknamed the "female Viagra" because it could help increase women's sex drive, will be discussed for a third time at a meeting of an advisory committee to US regulators Thursday.

Jun 04, 2015
popularity5 comments 0

BPA can adversely affect parenting behavior in mice

Biparental care of offspring, or care that is administered by both parents, occurs in only a minority of species, including humans. Past studies have shown that maternal care can be negatively affected when females are exposed ...

Jun 03, 2015
popularity11 comments 0

Protecting women from multiple sclerosis

An innocent mistake made by a graduate student in a Northwestern Medicine lab (she accidentally used male mice instead of female mice during an experiment) has led scientists to a novel discovery that offers new insight into ...

May 28, 2015
popularity20 comments 0

Gender-based differences in glycemic control in T2DM

(HealthDay)—For patients with type 2 diabetes, there are gender-based differences in glycemic control and hypoglycemia after insulin treatment, according to research published in the June issue of Diabetes, Obesity and ...

May 26, 2015
popularity3 comments 0


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.

This text uses material from Wikipedia, licensed under CC BY-SA

Subscribe to rss feed