Thankfully though, it wasn't a case of the clouds opening up and spiders somehow hurtling towards planet earth.
The arachnids are actually moving on top of a huge canopy-like web structure which is build among the trees over vast distances.
Check out the short clip below (and no, those aren't specks of dust on your screen).More news: 'Game of Thrones' Final Season Premiere Date Revealed
A video is doing the rounds on social media shows a scene nearly straight from the apocalypse with the arachnids falling from the skies. Thankfully, this particular kind of spider isn't venomous so. let's be thankful for that.
The spiders are actually just chilling and waiting for their dinner.
The Guardian on Saturday reported recent accounts of such an occurrence in Brazil, where people have reportedly claimed it's "raining spiders".More news: Family had to sit on floor of TUI plane
The footage was filmed by João Pedro Martinelli Fonseca, who was traveling to his grandparents' farm in Espírito Santo do Dourado, about 250 km north-east of São Paulo. The phenomenon, experts say, is typical in the region during hot, humid weather.
His grandmother, Jercina Martinelli, told local newspaper Terra do Mandu: "There were many more webs and spiders than you can see in the video".
Some spiders use ballooning to catch gusts of wind and surf the skies; watching teeny, tiny crab spiders do this is actually pretty freaking awesome (even if their presence in the skies is, you know, not). In fact, these creatures are quite enterprising; spiders can even sail for god's sake.More news: Dillian Whyte fancies his chances of knocking out Tyson Fury
And reader, while I am very sorry to have to tell you, these are hardly the only spiders that "fly". "We've seen this before, always at dusk on days when it's been really hot".