Warning....this story is not for the squeamish or faint of heart!
Screen caps and photographs of the spine-tingling spectacle can barely do the scene justice. The man taking the video, 20-year-old web designer Erick Reis, keeps repeating "It's raining spiders," in Portuguese over and over again. You can hear the shrieks and nervous laughter of other witnesses taking in the Apocalyptic event. (Was "raining spiders" one of the Ten Plagues of Egypt?)
Brazilian news site G1 is reporting that the spider is of the species Anelosimus eximius, a "social" spider native to parts of Central and South America. A local biologist characterized the behavior as "normal". Yes, seeing how the locals observing the scene couldn't believe what they were witnessing and I'm sure their eyes bugged out of their heads, this is definitely "normal, every day behavior"!
If you have a fear of spiders or any other creepy-crawlies, do yourself a favor and Do Not watch the following video!
My theory: The spiders are exhibiting reactive behaviors to potentially great changes in their environment, as they can sense the slightest alterations, unlike people.