Spider Silk Cape Goes On Display

Spider silk isn't sticky by itself. It's essentially some very long protein filaments, same as worm-butt silk.

What makes spider orbs sticky is that the spider then deposits small droplets of glue along the threads.

But even spiders produce non-glued silk all the time. E.g., when a spider lowers itself by dangling on a silk filament, it doesn't bother putting glue on it.

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/_DCRbz1TcWE/spider-silk-cape-goes-on-display

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