Stories by WTTW News

Watch the May 24, 2017 full episode of "Chicago Tonight."

Watch the May 23, 2017 full episode of "Chicago Tonight."

Watch the May 22, 2017 full episode of "Chicago Tonight."

Coyotes have made a remarkable comeback in Chicago. What are the secrets to their survival in a dense metropolis? Marcus Krahnforst hunts for clues with noted biologist Stan Gehrt in this “Urban Nature” episode.

Gov. Bruce Rauner gets a big gift from billionaire Ken Griffin. A rash of carjackings. Will the mayor find money to keep schools open? And a Cubs sweep reassures worried fans.

Watch the May 18, 2017 full episode of "Chicago Tonight."

Watch the May 17, 2017 full episode of "Chicago Tonight."

Watch the May 16, 2017 full episode of "Chicago Tonight."

Watch the May 15, 2017 full episode of "Chicago Tonight."

The monarch butterfly’s remarkable migration is in peril. Its habitat has been decimated by rapid urbanization and changing agricultural practices. Could cities come to the rescue?

Watch the May 11, 2017 full episode of "Chicago Tonight."

Watch the May 10, 2017 full episode of "Chicago Tonight."

Watch the May 9, 2017 full episode of "Chicago Tonight."

Watch the May 8, 2017 full episode of "Chicago Tonight."

Why do some squirrels live in more affluent neighborhoods, while others dwell in more disadvantaged ones? WTTW's online series “Urban Nature” has the story.

Watch the May 4, 2017 full episode of "Chicago Tonight."

Watch the May 3, 2017 full episode of "Chicago Tonight."

If you’re not a fan of math, Eugenia Cheng is on a mission to change your point of view. 

Watch the May 2, 2017 full episode of "Chicago Tonight."

When an obsession with outer beauty gets in your head so much that it makes you sick, that’s a serious problem, says Northwestern professor Renee Engeln.

Watch the May 1, 2017 full episode of "Chicago Tonight."

For migrating birds, Chicago can be a dangerous place. But scientists, architects and volunteers are now teaming up to make the city a leader in bird-friendly design. The story is told in WTTW's online series “Urban Nature.”

Watch the April 26, 2017 full episode of "Chicago Tonight."

Watch the April 25, 2017 full episode of "Chicago Tonight."

Watch the April 24, 2017 full episode of "Chicago Tonight."

A new film on HBO starring Oprah Winfrey tells the remarkable story of Henrietta Lacks. We revisit our conversation with the Chicago author who tells the story.