Unusual natural phenomenon was hunting the “social” spiders.
Residents of the Eastern Brazilian state of Minas Gerais photographed clusters of spiders in the sky. They called this phenomenon “pavkovi rain.” The biologist explained that hunted the spiders Parawixia bistriata.
In social networks spread pictures and videos, which show a cluster of spiders, which move as if on air. Most popular got the movie joão Pedro Fonseca Martinelli (Martinelli João Pedro Fonseca), who during a visit to relatives noticed that the whole sky is covered with black dots. According to him, this phenomenon him stunned, especially when one of the spiders fell into the car through the open window, informs Rus.Media.
The boy’s grandmother told local media that in fact spiders were observed more than noticeable on the video. She testified that she had seen it before, always in the twilight of extremely hot days. In 2013, the same was observed by the inhabitants of Santo Antonio da Platina.
Professor of the Federal University of Minas Gerais, Adalberto DOS Santos (Adalberto dos Santos) explained the cause of the phenomenon. According to him, the spiders Parawixia bistriata lead a social life. They live in colonies: day nest in a giant, relative to their size, balls, and in the evening go out to hunt. Between the bushes and trees they weave a huge network of spider web – it can reach four meters wide and three meters in height. Its threads are so thin that barely noticeable to the human eye, and therefore creates the illusion that the spiders floating in the air. Night arachni catch the prey, which are usually insects, but sometimes small birds, and at dawn returned to the lair.
, Adalberto DOS Santos said that the venom of Parawixia bistriata is not dangerous for people, and the thrill of the bite can be compared to those experienced by humans by the bite of the red butterflies.
Before the spiders showed a wide variety in behavior. For example, in November last year, researchers from the Chinese Academy of Sciences in Yunnan, conducted a series of experiments on Paducah Toxeus magnus belonging to the family of jumping spiders (Salticidae). They noticed that the females feed their young with milk during the first 40 days of their life.