Thursday, 10 June 2010

If you go down to the woods today .......


 
........you never know what you'll find!

Goldenrod Crab Spiders are usually yellow but that’s not always the case, even among individual spiders. If one of these spiders should find itself on a white flower, it can change its color to match the new background. This is accomplished through the movement of liquid pigment the spiders produce and shuttle from lower to upper “skin” layers as needed. It takes one of these spiders about 6 days to change from yellow to white but as long as 30 days to accomplish the reverse color shift. 

1 Comments:

Blogger longneys said...

Some very interesting crawling creatures. Well done.

13 June 2010 at 23:30  

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