m*******h
发帖数: 2005 | 1 Sexually transmitted diseases reduce the willingness of female baboons to
mate
8 hours ago
The German Primate Center
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A female olive baboon at peak estrus rejects the mating attempt of a male.
Credit: Filipa Paciência
Sexually transmitted diseases are widespread among animals and humans.
Humans, however, know a multitude of protective and hygienic measures to
protect themselves from infection. An international research team led by
scientists at the German Primate Center (DPZ)-Leibniz Institute for Primate
Research has investigated whether primates change their sexual behavior to
minimize the risk of contracting a sexually transmitted disease.
At Lake Manyara National Park in Tanzania, researchers observed the mating
behavior of olive baboons infected with Treponema pallidum. They found that
the females avoid mating if either the male or the female themselves showed
visible signs of the infection. Males, on the other hand, did not change
their behavior. The research is published in Science Advances.
Treponema pallidum subspecies pertenue causes ulcers in the genital area of
baboons in East Africa that lead to severe distortions of the genitalia as
the disease progresses. The pathogen also affects other monkey species. In
humans, the bacteria causes yaws, which, especially in children, leads to
skin lesions, and ultimately to severe bone and cartilage damage. Affected
humans are physical disabled and stigmatized. Yaws is primarily transmitted
via skin-to-skin contact and is currently the subject of a WHO campaign that
seeks to eradicate the disease by 2030. Closely related to the yaws
pathogen is the syphilis pathogen, Treponema pallidum subspecies pallidum.
Syphilis is also one of the most common sexually transmitted diseases in
humans.
Olive baboons are found from Mali in West Africa to Ethiopia, Kenya and
northern Tanzania in East Africa. A group of scientists of the German
Primate Center, led by Dietmar Zinner and Sascha Knauf, studied the mating
behavior of the olive baboons in Lake Manyara National Park in Tanzania over
18 months. The study group consisted of approximately 170 baboons. Female
olive baboons in peak estrus usually mate with more than one male. The peak
estrus is indicated by a prominent swelling of their sexual skin. For her
doctoral thesis, Filipa Paciência observed 876 mating attempts between 32
females and 35 males of which 540 led to copulations. In the vast majority
of cases, the mating was initiated by the males. It was found that the
females more often avoided mating attempts by males if they or the male
showed visible signs of an infection. Compared to other studies of baboon
populations that were not infected, a female in the study group had fewer
mating partners on average.
"Our findings indicate that the risk of contracting a sexually transmitted
disease can produce individual behavioral changes that could lead to a
change in partner choice and potentially reduce the degree of promiscuity in
a nonhuman primate population," says principle investigator Dietmar Zinner.
More information: "Mating avoidance in female olive baboons (Papio anubis)
infected by Treponema pallidum" Science Advances, advances.sciencemag.org/
content/5/12/eaaw9724
Journal information: Science Advances
Provided by The German Primate Center | s*****r
发帖数: 11545 | 2 那么疼当然不想了，如果不痛不痒的话结果肯定不一样。 | X*******G
发帖数: 14887 | | T****t
发帖数: 11162 | 4 据说梅毒就是，能控制神经
: 会不会有种性病，得了之后更想做爱的？
【在 X*******G 的大作中提到】
: 会不会有种性病，得了之后更想做爱的？
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