Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

A black widow spider couple clings to a web. Recent research shows that males of the species seek out recently-fed females for mating. 
  
 Black widow spiders seem to be universally feared. But who's scared of a brown widow? The black widow should be quaking all eight of its boots, a new study suggests. In the United States, there's a new widow in town. The brown widow. And scientists say it may be taking over some native western black widow territory. 
  
 That may be good news in one sense: Brown widow spider bites are less toxic than those of black widows, researchers say. 
  
 The brown widow spider first showed up in the United States (in Florida) in 1935. It was discovered in California in 2003. They've done well with their expansion efforts, it seems. Scientists searched various habitats in Southern California where they expected to find black widows, from urban areas and farms to undeveloped natural areas. 
  
 "The brown widows really burst on to the scene in a very short time, and we found brown widows in many habitats where we expected to find black widows," study researcher Richard Vetter of the University of California, Riverside, said in a statement. "There may be some competition where brown widows are displacing black widows because there is some habitat overlap. There are also places where only brown widows were able to make homes, but in other habitats the black widows still predominate." 
  
 At 72 sites, the researchers found 20 times as many brown widow spiders as black widows. Here's the creepy part: They frequently found them under outdoor tables and chairs, and in tiny spaces in walls, fences and other objects. The good news: Neither spider was found in the living spaces of houses, the scientists said in a statement. 
  
 The findings are detailed in the July issue of the Journal of Medical Entomology. 
  
 Follow LiveScience on Twitter @livescience. We're also on Facebook & Google+. ||||| As far as anyone knows for certain, brown widow spiders have only resided in Southern California for a decade or so -- the first in the region was spotted in Torrance in 2003. But a new survey conducted by California entomologists shows that the spider is now making itself quite comfortable in our neck of the woods. 
  
 In some Southern California habitats, including the outdoor areas around suburban houses, the brown widow far outnumbers its cousin the black widow — a California native long feared for its venomous bite. 
  
 “The brown widow is really taking over,” said Richard Vetter, a staff research associate at UC Riverside and coauthor of a paper detailing the survey, being published Monday in the Journal of Medical Entomology. Collecting data at 72 sites in Orange and Riverside counties, Vetter and his colleagues found brown widows at a rate 20 times greater than the rate at which they found black widows — at least, when they searched around people’s homes. 
  
 That’s because unlike black widows, who like to crawl into cracks and under debris for shelter, brown widows like to hide out in people’s things. They gravitate toward the crannies underneath chairs and into those downward-facing recessed handles on garbage cans. 
  
 “Cheap patio furniture is great stuff. They love it,” said Vetter, who has upturned a single molded plastic chair and seen five to eight brown widows hanging out in the niches underneath. “They like a solid top,” he added. “If you have a mesh top, or fabric mesh, I don’t know if it’s the air or the light, but they don’t like that.” 
  
 The entomologists also frequently found brown widows under the supports on wooden fences, in the nooks beneath plastic playground equipment and in “the curled lips of potted plants.” They did not find brown widows in houses, and only rarely found them in garages, sheds, wilderness or agricultural areas. 
  
 The researchers counted black widows, too, and found them in larger numbers in agricultural areas and in xeric (drought-friendly) landscaping. 
  
 The brown widow’s apparent success in Southern California doesn’t mean it has pushed aside the black widow. Vetter said it was not uncommon for an invasive species to find a new habitat, spread like gangbusters at first, and then see its population dwindle a bit as it reaches a new equilibrium. That has been the recent experience in Georgia, he said. 
  
 The main thing Homo sapiens will want to know about Latrodectus geometricus? Although it’s venomous, its bite isn’t as dangerous as that of the black widow. 
  
 It hurts initially, and then there’s some burning at the site, but that’s usually all, Vetter said. 
  
 “Mostly, nothing happens,” he said. 
  
 Click here to visit Vetter’s webpage and learn more about brown widow spiders. |||||

Good news: You may now be slightly less likely to find a black widow spider hiding in your shoe. Researchers discovered that the deadly arachnid is being crowded out of swaths of its native US territory by a new creepy crawler to the scene—the brown widow, reports LiveScience. The upside for humans is that the brown widow's bite is less toxic. It would probably just hurt a lot. Scientists were investigating natural habitats in Southern California where they expected to encounter black widows, but at more than 70 of the sites, they found 20 times as many brown widows. "There may be some competition where brown widows are displacing black widows because there is some habitat overlap," says one researcher. The black widows may be heading to more agricultural areas, notes the LA Times. Their brown cousins seem to prefer hiding around human structures, with a special affinity for "cheap patio furniture," adds the researcher.