Cassie Jensen of Savage was on her way to her tomato garden when she froze in her tracks.
A grasshopper jumped into a web hanging from the garage. A spider sprang on the grasshopper, wrapped the victim in silk, dragged it to a corner of its web and sucked the grasshopper dry.
"I was freaking out," Jensen said. "That spider was huge. ... I've never seen anything like it."
While experts say lots of spiders are always around in the fall, anecdotal evidence is pointing to larger spiders -- and more of them -- this year, partially because of the unusually hot summer.
"They just look big and fat," said Larry Weber, a retired teacher from the Duluth area who wrote a popular field guide called "Spiders of the North Woods."
"I noticed many years ago a correlation between the size of spiders and summer heat. If summers are hot, spiders are bigger," he said, because insects tend to thrive in heat and spiders are predators that feed on insects.
Jennifer Menken, a wildlife expert with the University of Minnesota's Bell Museum of Natural History, said spider populations tend to boom every few years.
Sometimes localized populations can spike because of how baby spiders disperse themselves -- by "ballooning," or sending out a strand of silk and sailing on the wind.