A giant spider web has been found in the Dallas suburb of Rowlett. The webs are massive in size that they have been draping trees and thousands of spiders are living there. It is a rare sight, but has not happened for the first time.

Scientists do not have a definite answer for why spiders build such massive webs. As per them, the Tetragnathidae family could be responsible for building such extraordinarily huge webs. Mike Merchant, an urban entomologist at the TAMU AgriLife Extension Service, explained that the web stenches for around about the length of a football field along CA Roan Drive in Dallas.

As mentioned above, it is not the first time when such massive webs have been found in Texas. In 2007, a giant web was found in Lake Tawkoni State Park. Many people during that year reported about the web and spider experts have to flock to the area.

Scientists were surprised to see spiders that were working to build a huge web. The Tetragnathaguatemalensis spiders are known to build such webs with cooperating of other spiders. Scientists said that such incidents are rare because spiders tend to be loners.

Spiders that live in such huge webs are not found to cause any problem to people. Therefore, people should not worry to observe such webs even at close range. "These types of spiders are unusual in that they are not aggressive to other spiders of the same species on the same web", affirmed Merchant.

“Arachnologists had previously noted that this species is known to build communal nests when conditions are right,” he said. “But it is rare to see them building such large nests in the U.S. Spider experts have indicated that those ‘right conditions’ appear to include a glut of small insects like midges that emerge at night from lakes. Without lots of food, these communal webs just don’t seem to form.”

“These types of spiders are unusual in that they are not aggressive to other spiders of the same species on the same web,” he said. “They also are not known to bite or be harmful to humans.”

Because of their lack of aggression, Merchant said there is really no need to treat for them.

“Insecticides or other treatments are really unnecessary as this spider is essentially harmless and, although the communal nest may look spooky, they too are basically benign and are a sight more to be appreciated than feared.”