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The Killing Season - Websleuths

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  1. #1
    Join Date
    Oct 2012
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    Four years on, zoo discovers why hyena mating hasn't worked

    After four years of trying, a Japanese zoo just realized they've been trying to persuade two male hyenas to mate.

    'Maruyama Zoo in Sapporo said it had been given the spotted hyenas, Kami and Kamutori, as a "male and female pair" as part of an exchange with a South Korean zoo in 2010.
    After the two animals struggled to reproduce, the zoo conducted a gender test under anaesthesia.'

    The Zoo says spotting external genitalia is difficult and it will now be looking for a female.
    http://www.itv.com/news/2014-10-03/z...or-four-years/

    Photo link: http://ccsbio.blogspot.com/2012/04/f...hyenas-to.html
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    We 'embraced' the missing Bob Harrod case as requested but 6 years on, are still waiting for further guidance


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    http://www.websleuths.com/forums/sho...2009-19/page22

  2. #2
    Join Date
    Aug 2014
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    2,301
    I read this earlier today and just shook my head. If only all mysteries could be solved this easily (though I am surprised it took 4 years)...

  3. #3
    Join Date
    Oct 2012
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    Heart of Europe
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    Can't a person just tell by the way they pee, like dogs?
    We 'embraced' the missing Bob Harrod case as requested but 6 years on, are still waiting for further guidance


    Flyers/FB/Case Overview&Media Links
    http://www.websleuths.com/forums/sho...2009-19/page22

  4. #4
    Join Date
    Jun 2004
    Location
    SF Bay Area, CA
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    24,072

    Wink

    Haha! Guess they aren't gay hyenas.
    This is the year to locate Mark Dribin http://www.websleuths.com/forums/sho...ht=Mark+Dribin NamUs MP#876 and Ilene Misheloff http://www.websleuths.com/forums/sho...lene+Misheloff NamUs MP#6410 and bring them home to their families!

    Parents watch your children. Free-range parenting leads to more child victims.

    Cruelty to humans begins with cruelty to animals.

    I believe in closure, not forgiveness. I'm also unapologetically judgemental.

    JeSuisJuif
    JeSuisCharlie


  5. #5
    Join Date
    Nov 2009
    Location
    where orchids grow on trees
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    5,212
    I am assuming they were "laughing hyenas".
    Richard Castle " There are two kinds of folks who sit around thinking about how to kill people: psychopaths and mystery writers. I'm the kind that pays better."

  6. #6
    Join Date
    Apr 2014
    Posts
    28
    Nobody both to confirm the testicles were, in fact... testicles?


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  7. #7
    Join Date
    Sep 2014
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    698
    Female hyenas develop genitalia that mimic the male one perfectly, most of the time surpassing them in size.


    Although the genitalia of the male spotted hyena is typical by mammalian standards, that of the female closely resembles that of the male; the clitoris is shaped and positioned like a penis, and is capable of erection. The female also possesses no external vagina (vaginal opening), as the labia are fused to form a pseudo-scrotum. The pseudo-penis is traversed to its tip by a central urogenital canal, through which the female urinates, copulates and gives birth.[48][49] The pseudo-penis can be distinguished from the males' genitalia by its greater thickness and more rounded glans.[11][50] In both males and females, the base of the glans is covered with penile spines.[51][52][53] The formation of the pseudo-penis appears largely androgen independent, as the pseudo-penis appears in the female fetus before differentiation of the fetal ovary and adrenal gland.[11] After parturition, the pseudo-penis is stretched, and loses many of its original aspects; it becomes a slack-walled and reduced prepuce with an enlarged orifice with split lips.[40]

    The spotted hyena is a non-seasonal breeder, though a birth peak does occur during the wet season. Females are polyestrus, with an estrus period lasting two weeks.[60] Like many felid species, the spotted hyena is promiscuous, and no enduring pair bonds are formed. Members of both sexes may copulate with several mates over the course of several years.[49] Males will show submissive behaviour when approaching females in heat, even if the male outweighs his partner.[61] Females usually favour younger males born or joined into the clan after they were born. Older females show a similar preference, with the addition of preferring males with whom they have had long and friendly prior relationships.[62] Passive males tend to have greater success in courting females than aggressive ones.[63] Copulation in spotted hyenas is a relatively short affair,[61] lasting 412 minutes,[64] and typically only occurs at night with no other hyenas present.[61] The mating process is complicated, as the male's penis enters and exits the female's reproductive tract through her pseudo-penis rather than directly through the vagina, which is blocked by the false scrotum and testes. These unusual traits make mating more laborious for the male than in other mammals, while also ensuring that rape is physically impossible.

    Giving birth is difficult for female hyenas, as the females give birth through their narrow clitoris, and spotted hyena cubs are the largest carnivoran young relative to their mothers' weight.[69] During parturition, the clitoris ruptures in order to facilitate the passage of young, and may take weeks to hea
    http://en.wikipedia.org/wiki/Spotted...male_genitalia

  8. #8
    Join Date
    Apr 2014
    Posts
    28
    Wow. Well, that's unattractive.


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  9. #9
    Join Date
    Mar 2009
    Posts
    28,607
    Here's hoping my Hyena Privacy 2014 legislation will be enacted soon. Give Kami and Kamutori some space, world!



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