This spider web is strong enough for a bird to sit on, a scientific first

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This spider web is strong enough for a bird to sit on, a scientific first
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The newly recorded behavior could mean the jorō spider—an invasive species—can provide a small but positive benefit to other wildlife

On September 13, 2022, Atlanta-based naturalist and garden expert Arty Schronce looked out his kitchen window and saw what he thought was a female cardinal trapped in a huge, golden spiderweb.

The whole encounter lasted just two minutes, but Schronce suspected he’d just witnessed something special. When he checked the next day, the spider was still there, and the web remained undamaged. , an expert on jorō spiders at the University of Georgia. Coincidentally, only a few months before Schronce observed the bird perched in the jorō web, Davis had performed a series of tests to determine the spiderwebs’ strength as part of an elementary school science fair project with his son, Oscar.

“Four or five months later, this guy calls me and says he's found a bird sitting on a web,” Davis recalls. “And then I kind of put two and two together and realized that I had data that basically showed the same thing.” 'A pretty bizarre thing for a cardinal to do'says he’s never seen one of these common North American birds do anything like this. For one thing, “cardinals are not small birds,” says Baldassarre, who is an ornithologist at the State University of New York at Oswego.

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