Zooillogix

Golden showers, crayfish style!

Researchers at the University of Hull, UK, recently published a paper about chemical signaling in reproductive behavior in crayfish. Yep, crayfish. Apparently, the female must release urinary cues in order to initiate courtship behavior in males. No pee, no sex. Unfortunately (and understandably), being peed on also triggers aggression in this species. The authors argue the female crayfish use their influential bodily fluids to stimulate aggression in males to gauge size and strength in prospective mates, allowing the females to choose the fittest males for subsequent copulation.

In male-female pairings, the authors blocked urine release or introduced urine from other females to show the effect on reproduction and aggression.

i-17e936161fa62e82662a23be6f1fc56b-urine-fight1.jpg

“But, honey, I thought you liked water sports!”

Curious about what’s on their heads? The authors blindfolded the little guys to prevent disturbance by visual stimuli. While not for the crayfish-lover, the methods section of this paper is pretty amazing! Read it here.

Here’s a little video action:
The following video has been rated PG-13 for sexual content and violence. Some material may be inappropriate for children under 13.

Contrary to popular belief, crayfish pee is not fluorescent green. The researchers used a dye injection to visualize the bathroom behaviors of their subjects.

Although this study provides additional data on chemical signals in reproductive behaviors, it has also provided us here at Zooillogix with some new ideas to incorporate into our crayfish races. Dat shit’s gonna get crazy now.

Comments

  1. #1 mike s
    April 16, 2010

    love it

  2. #2 ofis koltuklari
    January 18, 2011

    Or else just drugged. Dramatic results! I hope they didn’t bang up the horse.

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    February 3, 2011

    Like how if in college, had you gotten a real degree, set goals for it

  4. #4 mermer lavabo
    February 10, 2011

    may rest easier tonight knowing there is a term for that: “fictive thinki

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    February 12, 2011

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  6. #6 hayvancılık
    February 22, 2011

    emale crayfish use their influential bodily fluids to stimulate aggression in males to gauge size and strength in prospective mates, allowing the females to choose the fittest males for subsequent copulation

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  9. #9 2. el esya
    March 4, 2011

    use their influential bodily fluids to stimulate aggression in males to gauge size and strength in prospective mates, allowing the females to choose the fittest males for subsequent copulation.

  10. #10 altın çilek
    March 4, 2011

    Like how if in college, had you gotten a real degree, set goals for it

  11. #11 orjin krem
    March 4, 2011

    Like how if in college, had you gotten a real degree, set goals for it

  12. #12 kimya
    March 24, 2011

    Like how if in college, had you gotten a real degrePandora has

  13. #13 kredi
    March 24, 2011

    and strength in prospective mates, allowing the females to choose the fittest males for subsequent copulation

  14. #14 Bad-Accessoires
    May 2, 2011

    We are after all not so far ahead of them.

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    May 12, 2011

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    May 20, 2011

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  18. #18 sorgula sorgulama
    May 24, 2011

    size and strength in prospective mates, allowing the females to choose the fittest males

  19. #19 prefabrik
    June 16, 2011

    a term for that: “fictive thinking”. And guess what… monkeys get it too.

  20. #20 hasan burkay
    June 25, 2011

    term for that: “fictive thinking”. And guess what

    term for that: “fictiv

    e thinking”. And guess what

    very very very very very

    thanks

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  22. #22 boyacı
    August 3, 2011

    strength in prospective mates, allowing the females to choose the fittest males for subsequent copulation

  23. #23 traverten eskitme
    August 15, 2011

    They can they would have received had they chosen to behave differently.

  24. #24 Jiletli Tel
    November 11, 2011

    good luck

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    November 11, 2011

    good luck.

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