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Examples of secondary sex characteristics in non-human animals include manes of male lions [4] and long feathers of male peafowl, the tusks of male narwhals, enlarged proboscises in male elephant seals and proboscis monkeys, the bright facial and rump coloration of male mandrills, horns in many goats and antelopes, [10] and the swollen upper ...
In contrast, the females are rusty red to silver with small spots. The bright coloration in the male population attracts females and is an aposematic sign to potential predators. Females often show a preference for exaggerated male secondary sexual characteristics in mate selection. [16]
Male primary sex characteristics are the penis, the scrotum and the ability to ejaculate when matured. Female primary sex characteristics are the vulva, vagina, uterus, fallopian tubes, cervix, and the ability to give birth and menstruate when matured. [1] Hormones that express sexual differentiation in humans include: estrogens such as estradiol
The WGSN decided to attribute proper names to individual stars rather than entire multiple systems. [20] It approved the name Brachium for the primary component Sigma Librae A on 5 September 2017. Ankaa had previously been approved as the name for Alpha Phoenicis on 29 July 2016. Both are now so included in the List of IAU-approved Star Names. [15]
The combined male-female symbol (⚥) is used to represent androgyne people; [17] when additionally combined with the female (♀) and male (♂) symbols (⚧) it indicates gender inclusivity, [citation needed] though it is also used as a transgender symbol. [18] [19] [17] The male-with-stroke symbol (⚦) is used for transgender people. [17]
This list of related male and female reproductive organs shows how the male and female reproductive organs and the development of the reproductive system are related, sharing a common developmental path. This makes them biological homologues. These organs differentiate into the respective sex organs in males and females.
One morning you wake up and look in the mirror to find that your hairline is further back than it used to be. As you run your fingers through your hair, you realize it’s also not as full and ...
Brachium (plural brachia) may refer to: The arm or the upper arm; The traditional name of the star Sigma Librae; Brachium of inferior colliculus, part of the brain; Brachium of superior colliculus, part of the brain; Brachia conjunctiva, part of the brain