Major cities face plague of vicious bloodthirsty disease-riddled SUPER-RATS

A new report says major cities around the globe are now packed with super-sized disease ridden rats, which have been forced to evolve thanks to the consequences of massive urbanisation.

This is because humans, being the dominant species, are causing disgusting critters lower down the pecking order to evolve at a faster rate.

Marc Johnson, an associate professor of biology at the University of Toronto, said: “As we build cities, we have little understanding of how they are influencing organisms that live there.”

The study also found, which focused mainly on London, that bedbugs which were scarce two decades ago in the capital city, are now immune to insecticides.

It also found that mosquitos on the underground do not need blood, and mosquitos in thew New York subway have adapted so that they no longer need to be dormant in the winter time.

Mr Johnson continued: “It’s good news that some organisms are able to adapt, such as native species that have important ecological functions in the environment. 

“But it can also be bad news that the ability of some of these organisms to adapt to our cities might increase the transmission of disease.

Jason Munshi-South, who is an associate professor of biological sciences at Fordham University and co-author of the study, added: “Traditionally, we’ve thought about evolution as a long-term process driven by environmental pressures and the interactions between species. 

“But now there is a new driver that is rapidly changing many other species, which is how they interact with humans and our built environment. 

“Humans and our cities are one of the most dominant forces of contemporary evolution now.”