Many comments about this video start with: ''If this happened, i would not be able to leave my house''
According to a Brazilian news site G1, as spoken to a biologist who identified the spiders as Anelosimus eximius which is a social spider known for massive colonies and "sheet webs." The biologist added the massive grouping of spiders was common for the Anelosimus eximius.
This is scarey wonder if they bite ,strange happening, No way. Running away, fast, screaming. LOL