A herd of 65 sheep and goats replaced more traditional mowing equipment this summer at MWRD’s Calumet Water Reclamation Plant, where the animals helped maintain the native prairie landscape. 

It's mating season for deer, which means more are on the move at dawn and dusk — prime time for deer-vehicle collisions. Cook County led the state in 2019 with 472 crashes.

Thursday’s full moon is the harvest moon, coming closest to the autumnal equinox. It will have some celestial company on Friday in the form of Mars, when the two will rise together and stay paired throughout the evening, according to experts.

It’s Fat Bear Week. No, we’re not mocking Matt Nagy’s squad, we’re talking about the annual competition to crown the beefiest brown bear in Alaska’s Katmai National Park. Here’s how to get in on the action.

Tuesday marks the first ever International Day of Awareness of Food Loss and Waste, so let’s talk about the produce that spoiled in your refrigerator and the unopened cans you trashed because they were past their “expiration date.”

Protesters lined the corner of Austin Boulevard and Fullerton Avenue on Sunday, holding signs linking animals to viral outbreaks, like Ebola and COVID-19. One sign simply read: “We are one pandemic away from collapse.”

Researchers at the University of Chicago Medicine have found an apparent link between vitamin D deficiency and the likelihood of getting COVID-19. Paleontologist Neil Shubin has details on that story and more.

Visitors can choose from a slew of free activities at more than a dozen sites Saturday. Among the options, you can take a nature walk, learn the basics of camping, build a toy boat, meet some critters or join a scavenger hunt.

As Chicago gets ready for cooler weather, many parts of the country are being hit by wildfires, hurricanes and the aftermath of last month’s destructive derecho. We learn more with atmospheric scientist Scott Collis.

Maryam Saleh, an entrepreneur and Chicago-based computational neuroscientist, tells us about her new role leading the Ed Kaplan Family Institute for Innovation and Tech Entrepreneurship at the Illinois Institute of Technology.

During the fall equinox, the sun rises due east and sets due west, creating an effect dubbed “Chicagohenge” (in reference to Stonehenge), when the sunset is strikingly framed on east-west streets by the city’s skyscrapers.

It might not be the day of your Coppertone dreams, but you can get a little sand between your toes by signing up for one or all of this week’s volunteer beach and shoreline cleanups.

Join a hike Sunday in Will County, where a flock of American white pelicans, one of North America’s largest birds, is hanging out during its annual fall migration.

Community gardens and urban farms were left scrambling to comply with a new city policy related to hydrant access that left some without water throughout the entire 2020 growing season. 

The annual migration of monarch butterflies is currently at its peak in the Chicago area. Several roosting sites have been spotted around town as the creatures use the city as a pit stop on their 2,000-mile journey to Mexico.

Chicagoans are raising chickens, growing food and experimenting with all sorts of sustainable-living practices — all in their urban backyards. See how it’s done during this weekend’s annual Windy City Coop and Eco-Yards Tour.