Footage posted online yesterday shows the fairly sizable animals, identified as Anelosimus eximius, a type of spider, in one massive web.
A video taken shows a massive amount of spiders seemingly flying over San Antonio Platina, in Brazil. Upon a closer look, however, the spiders are actually weaving a giant web.
A local biologist told Gawker that the "social spider" species is known for its very big colonies and "sheet webs," and said such a mass dangling is "normal."
According to an earlier report by The Epoch Times, this is not the first time "raining spiders" has seemingly happened. In 2007 a man in Argentina captured pictures of a spider rain. At the time, these images were considered a rarity to catch this phenomenal experience on camera.
It isn't immediately clear why these spiders are congregating in such a manner, but it's worth noting several species of arachnid cooperate in colonies and weave (ahem) fairly extensive social networks.
YouTube user acoisacoisada1's video appears to be going viral. After all, it's not every day one gets to see it raining spiders.
On Friday afternoon the video had about 1,400 views, but on Saturday the page views are closing in on 162,000.
You can watch the video, entitled "Chovendo Aranhas" to the left of this article.