Sexual dimorphism is the condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs. The condition occurs in many animals and some plants. Differences may include secondary sex characteristics , size, weight, color, markings, and may also include behavioral and cognitive differences. These differences may be subtle or exaggerated, and may be subjected to sexual selection.
Koalas’ deep bellows: Folds in the pharynx make males sexy and dominant.
Sexual attitudes and behaviors in ancient Rome are indicated by art , literature and inscriptions , and to a lesser extent by archaeological remains such as erotic artifacts and architecture. It has sometimes been assumed that "unlimited sexual license" was characteristic of ancient Rome. In the popular imagination and culture, it is synonymous with sexual license and abuse. But sexuality was not excluded as a concern of the mos maiorum , the traditional social norms that affected public, private, and military life. Roman society was patriarchal see paterfamilias , and masculinity was premised on a capacity for governing oneself and others of lower status, not only in war and politics, but also in sexual relations. The corresponding ideal for a woman was pudicitia , often translated as chastity or modesty, but a more positive and even competitive personal quality that displayed both her attractiveness and self-control. Visual art was created by those of lower social status and of a greater range of ethnicity, but was tailored to the taste and inclinations of those wealthy enough to afford it, including, in the Imperial era , former slaves.
External Female Genitals
Hermaphroditism , the condition of having both male and female reproductive organs. Hermaphroditic plants —most flowering plants, or angiosperms —are called monoecious, or bisexual. Hermaphroditic animals—mostly invertebrates such as worms , bryozoans moss animals , trematodes flukes , snails , slugs , and barnacles —are usually parasitic, slow-moving, or permanently attached to another animal or plant. In humans, conditions that involve discrepancies between external genitalia and internal reproductive organs are described by the term intersex.
The female reproductive system functions to produce gametes and reproductive hormones, just like the male reproductive system; however, it also has the additional task of supporting the developing fetus and delivering it to the outside world. Unlike its male counterpart, the female reproductive system is located primarily inside the pelvic cavity Figure 1. Recall that the ovaries are the female gonads. The gamete they produce is called an oocyte.