Here’s lookin’ at ya!

Posted: January 17, 2010 in butterflies, macro photography
Tags: , ,

A jumping spider was minding its own business on a leaf when I turned up in its nice little spot and pulled down its leaf in an attempt to photograph a moth behind it.  This it watched with raptured curiosity while I turned to photograph it instead.

After moving my lens in closer to its funny little face, it looked up and posed for its portrait.

It looks as if its eye colours have changed.  This neat little trick is not really because the spidery eyes have changed colour. 

The two largest eyes of a jumpin' spider are called Anterior Median Eyes.  These large forward looking eyes are unique to the family of jumping spiders (Salticidae) and are tubular in structure (like a tube).  The retina is the darkest part of the eye.

Instead of moving the lens of the eye around (the lens is fixed), the spider moves its retina around to look around with the help of some small muscles.  When those buggy eyes turn black, you'll know that Spidey's lookin' at ya!

Jumping spiders have some of the best vision amongst the spider families and a lot of their interaction is visual.

Read http://tolweb.org/accessory/Jumping_Spider_Vision?acc_id=1946 for more information. 

Ref: An Introduction to Spiders Of South East Asia by Frances and John Murphy ISBN 983-9681-17-6 

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Comments
  1. Lauri says:

    Ooooo, shivers! But….wow! 🙂

  2. Lauri says:

    Oh double WOW, I just read about the spidery tube eyes! Fascinating!

  3. Emjay says:

    Oh – how fascinating about the eyes. It almost looks as though it has sunglasses on in the bottom shot.

  4. SusanMac says:

    Wow. That is cool.

  5. Thanks 🙂 glad you find spiders interesting! 😀

  6. Yeah… weird isnit it! Imagine not being able to move your eyeballs but you can move your retina around to view stuff.. .eeeekekeke 😛

  7. ahaha… thanks Emjay! 😀 They remind me of car headlights!

  8. Spiders are so cool… I wonder why they don't get disoriented receiving so many images all at the same time! 😛

  9. rocks says:

    Jumping spiders are generally diurnal, active hunters. Their well-developed internal hydraulic
    system extends their limbs by altering the pressure of body fluid
    (blood) within them. This enables the spiders to jump without having
    large muscular legs like a grasshopperjumping stilts

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