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Index of Subjects This is a multi-part message in MIME format. --Boundary_(ID_0hXQWxxnLc1yORbxmJql1A) Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT Ulli- Thanks for the additional information. Really fascinating little creatures. I'm always glad to see them in my house. Peter uhoeger@dal.ca wrote: > Most spider "knead" their prey as they work on digesting it, even the little > ones. Only few "specialists" liquefy and suck the whole thing empty through > a relatively small hole. Venom and saliva secreted into and over the prey > contain enzymes that break down the tissue. Not sure about the acid that > was mentioned, as digestion in arthropods in general happens at a fairly > neutral pH (unlike to human). Regurgitating acids may have negative effects > on your own tissue if it is not protected with a sacrificial mucus layer. > If I remember I will look into that on Monday...... > The book "Biology of Spiders" is a good one with lots of spider biology in it. > > Ulli > > --Boundary_(ID_0hXQWxxnLc1yORbxmJql1A) Content-type: text/html; charset=ISO-8859-1 Content-transfer-encoding: 7BIT <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> <font size="-1"><font face="Arial">Ulli-<br> <br> Thanks for the additional information. Really fascinating little creatures. I'm always glad to see them in my house.<br> <br> Peter<br> <br> <br> </font></font><br> uhoeger@dal.ca wrote: <blockquote cite="mid:49396A41.30069.35682E@uhoeger.dal.ca" type="cite"> <pre wrap="">Most spider "knead" their prey as they work on digesting it, even the little ones. Only few "specialists" liquefy and suck the whole thing empty through a relatively small hole. Venom and saliva secreted into and over the prey contain enzymes that break down the tissue. Not sure about the acid that was mentioned, as digestion in arthropods in general happens at a fairly neutral pH (unlike to human). Regurgitating acids may have negative effects on your own tissue if it is not protected with a sacrificial mucus layer. If I remember I will look into that on Monday...... The book "Biology of Spiders" is a good one with lots of spider biology in it. Ulli </pre> <pre wrap=""> </pre> </blockquote> </body> </html> --Boundary_(ID_0hXQWxxnLc1yORbxmJql1A)--
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