The monarch butterfly population has rebounded from a near record low number in 2024, according to the latest annual survey conducted by the World Wildlife Fund-Mexico.

Clocks will officially move ahead one hour at 2 a.m. Sunday, but President Donald Trump has called Daylight Saving Time “inconvenient, and very costly.”

In a lot of ways, the history of the North American beaver is interwoven with the history of Chicago.

From December 2024 through February 2025, Chicago notched less than a foot of snow.

After a career in city government spanning 35 years and five mayoral administrations, Rosa Escareño, general superintendent and CEO of the Chicago Park District, announced her resignation Wednesday.

The donation is one of the largest to the aquarium in recent history, according to Shedd.

In just a handful of decades, the rusty crayfish has become dominant in the Great Lakes. Join us on a deep dive into this elusive invader.

Southwest Flight 2504 landed safely at the Chicago airport after the flight crew had to perform a go-around to prevent a potential incident, according to Southwest. The FAA is investigating the incident, which took place at around 8:50 a.m. local time.

We separate fact from hype about the upcoming “planet parade.”

The U.S. Department of Agriculture confirmed the presence of highly pathogenic avian influenza in four rats submitted for testing.

A 1,300-acre restoration project at Midewin National Tallgrass Prairie has ground to a halt after federal grant funds, awarded in 2023, were frozen by the Trump Administration.

Tens of thousands of federal employees were fired in the last week. Here's the story of two former members of the U.S. Forest Service, who, up until a few days ago, worked at Midewin National Tallgrass Prairie in Will County.

 A recently discovered asteroid, named 2024 YR4, is now the riskiest asteroid ever detected. NASA has calculated that the space rock has a 3.1% chance of hitting Earth in 2032.

Reports of wild bird deaths continue to mount, and not just in Illinois. Meanwhile, a vaccine for chickens could be on the horizon.

Sub-zero wind chills will be the norm until Friday.

A band of dry air crashed Chicago's snowstorm party Wednesday.