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Male and female reproductive systems of the spotted hyena. In mammals, all intact developmentally typical males have a penis, but the clitoris in the females of the following species is sufficiently enlarged that it is usually termed a pseudo-penis: spotted hyena, [1] [2] juvenile fossa, [3] binturong, [4] lemur [5] and spider monkey.
Hyenas are known to have preyed on humans in prehistory: human hair has been found in fossilized hyena dung dating back 195,000 to 257,000 years. [70] Some paleontologists believe that competition and predation by cave hyenas ( Crocuta crocuta spelaea ) in Siberia was a significant factor in delaying human colonization of Alaska .
Bidirectional sex changers: Where an organism has female and male reproductive organs, but may act either as a female or as a male during different stages in life. [15] Example: Lythrypnus dalli (Family Lythrypnus) are a group of coral reef fish in which bidirectional sex change occurs. Once a social hierarchy is established a fish changes sex ...
It is more commonly seen within invertebrate species, although sexual mimicry is also seen among vertebrates such as spotted hyenas. Sexual mimicry is commonly used as a mating strategy to gain access to a mate, a defense mechanism to avoid more dominant individuals, or a survival strategy.
In ordinary circumstances, striped hyenas are extremely timid around humans, though they may show bold behaviours toward people at night. [10] On rare occasions, striped hyenas have preyed on humans. In the 1880s, a hyena was reported to have attacked humans, especially sleeping children, over a three-year period in the Erivan Governorate ...
“The sex characteristics a person is born with do not signify a person's gender identity,” adds Golob. “When people have ‘gender reveal parties,’ it really should be called a ‘genital ...
In Russia, however, the sex-associated gap has been increasing as male life expectancy declines. [128] The longer average life span of females can lead to skewed statistical results in regard to sex differences. For example, females are often seen to be at a higher risk of bone fracture due to osteoporosis.
Local folklore about hyenas often gives them powers such as gender switching (males and females are difficult to distinguish), shape shifting, and human speech—all of which encourages the belief that the hyena may have contributed to the original myth of the crocotta.