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3 ways that arachnids inject venom into their prey – Marlin Peterson
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3 ways that arachnids inject venom into their prey

 

I made this graphic to showcase the incredible evolution of venom-injecting structures that these major groups of arachnids have independently arrived at.  The scorpion thru the telson, or the tip if the “tail”; the wolf spider (you can tell by the eye arrangement- check out the lower row of 4 eyes!) injects via fangs at the tip of its chelicerae.  Lastly the pseudoscorpion has venom administered via its vestigial pedipalps- it even evolved an opposable thumb to compliment it!  And we thought we were special?

2 Comments

  • new mom

    new mom…

    […]arachnids have 3 main type of venom injecting devices | Marlin Peterson[…]…

    March 6, 2012 at 3:27 PM
  • Max C. Bärfelz

    Herr Peterson,
    I need to find out if arachnid venom, and Hymenoptra venom are alike in any way. I am a writer and I have an idea for a story where the Villain uses spider venom to kill his victims, some of whom were also allergic to bee stings. Can you help me out?

    Max C. Bärfelz

    March 21, 2015 at 11:52 AM

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