Our cities are reshaping the animals and plants that live in them, pushing some to evolve and even spawning new species more quickly and more often than you might think, scientists say. A mosquito that lives underground appears to be emerging as a new species from sewers and subway tunnels beneath cities around the world. It has different genes, feeding and breeding habits from its cousins, a species known as Culex pipiens, that live above ground. (The Associated Press)Evolution is the change in species over generations caused by changes in how common different genes are in the population. Maybe cities could lead to the evolution of new species, and there's some indication that may be happening.

Source: CBC News November 02, 2017 17:48 UTC