Ella Kellner in The Conversation:
As a materials scientist who studies spiders and their silks, I am curious about the relationship between spiderweb architecture and the strength of the silks spiders use. How do the design of a web and the properties of the silk used affect a spider’s ability to catch its next meal?
Spider silk has a long evolutionary history. Researchers believe that it first evolved around 400 million years ago. These ancestral spiders used silk to line their burrows, protect their vulnerable eggs and create sensory paths and guidelines as they navigated their environment.
To understand what ancient spiderwebs could have looked like, scientists look to the lampshade spider. This spider lives in rock outcroppings in the Appalachian and Rocky mountains. It is a living relative of some of the most ancient spiders to ever make webs, and it hasn’t changed much at all since web-building first evolved.
More here.
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