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A universe of beauty, mystery and wonder

A universe of beauty, mystery and wonder
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Monday, December 30, 2013

MYSTERY OF THE TINY AMAZON FOREST TOWERS SOLVED


Miniature towers surrounded by 'picket fences' on trees are found to be spiders egg-nests

  • Dubbed 'silkhenge' the picket fence structure was first discovered in June
  • During an expedition to Peru, a photographer realised it was a spider's web
  • This discovery was made when an orange spider hatched close to the web
  • Researchers don't know why the spider builds this unique structure
  • Experts are also working to identify which species the spider belongs to

  • The mystery of how the white picket fence structures appeared in the Peruvian Amazon in June has been solved.  They are the work of a tiny spider that builds it webs on trails lined by cecropia trees in Tambopata National Reserve, Peru.
     
    Researchers had no idea what was making the unique webs until a tiny orange spider hatched from an egg next to them. Arachnologists and entomologists are now working to identify which species the spider belongs to.
     
    Although the spider looks similar to a jumping spider, experts have ruled this out because the arrangement of the eyes were different between the families. 
     
    This latest discovery was made by wildlife photographer Jeff Cremer during an eight-day-long expedition to the reserve.
     
    He found that the spider species makes a central tower on a tree trunk and forms a circular fence around the outside.  At the base of the tower, the spider lays its eggs.
     
    Cremer and his team said they only realised this was the case when one of the spiders hatched and appeared from the bottom.
     
    The first of the structures was spotted in June by Troy Alexander, a graduate student at Georgia Tech.  Alexander discovered the bizarre formation on the bottom of some blue tarpaulin close to the Tambopata Research Center, in southeastern Peru.  He then found three more of the enclosures on tree trunks in the jungle, and told Wired.com that the fences measured around two centimeters across.
     
    Read more and see pictures of this alien-looking arachnid architecture and its architect  - 
     
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