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Ornate box turtles are a threatened species in Illinois due to habitat loss, but they've recently been released onto a wild sand prairie. (USFWS)

Thanks to an experimental program started by the U.S. Fish and Wildlife Service in 2009, a wild population of threatened turtles has been established in northwestern Illinois. Find out how local institutions helped the agency reach its goal.

Cook County Board President Toni Preckwinkle joins us to discuss the huge budget gap facing the county – and how she wants to tackle the problem.

Hear what viewers had to say about some of our recent stories when we read feedback from the "Chicago Tonight" website, and our Facebook and Twitter pages.

An event combining rousing orchestral music with high-definition NASA footage of the cosmos is coming to Ravinia Festival in Highland Park this week.

Watch the July 11, 2016 full episode of "Chicago Tonight."

Dallas Police Chief David Brown had some stern words for lawmakers Monday. We talk with two former Chicago cops about last week's deadly mass shooting.

Over the weekend, Chicago police arrested 21 protesters on charges ranging from obstructing traffic and resisting arrest to aggravated battery of a peace officer. Demonstrators say more protests are planned for the week ahead.

Get ready for a trip back in time: The CTA is rolling out some of its vintage trains and buses and you can soon get a sense of what Chicago transit passengers experienced nearly 100 years ago.

Steve Dahl at Disco Demolition Night, July 12, 1979. (Paul Natkin)

The new book "Disco Demolition: The Night Disco Died" explores the notorious history of the "Anti-Disco Army" – a rebellion that led to chaos at Comiskey Park and a forfeited game for the Chicago White Sox.