After the rats, squirrels, raccoons, pigeons, and crows, the synanthropy of lions, bears, and wolves. Science Daily:

About five miles from Chicago O'Hare International Airport, scientists have located the smallest known coyote territory ever observed. For at least six years, a coyote community has maintained its existence within about a third of a square mile

"That's an indication that they don't have to go far to find food and water. They're finding everything they need right there, in the suburbs of Chicago," said Stan Gehrt, an associate professor of environment and natural resources at Ohio State University who has led the tracking of coyotes around Chicago for 12 years. "It amazes me."

The reason for this? Cities are becoming bigger, and also wild animals are exploring a new niche. Anything we do, be it to our bodies or to our surroundings offers a new niche, new possibilities to some form of life. Life is the production and exploitation of niches.