The Biden administration on Thursday proposed revoking a rule imposed under former President Donald Trump that weakened the government’s power to enforce a century-old law that protects most U.S. bird species.

Chicago birdwatchers were treated to a rare glimpse of a wayward hummingbird at LaBagh Wood, far beyond its normal range of the U.S.-Mexico border.

Illinois is known for growing corn and soybeans, but there’s another local crop some say is ready for its close up: honey. We visit a bee farm just north of Chicago that has become one of the most celebrated in the entire state.  

The American mink is the poster critter for Chicago River Day, the annual cleanup hosted by Friends of the Chicago River that has volunteers fanning out from Lake County to Calumet to clear litter and trash from sites along the waterway. Here’s how to participate in Saturday’s event.

When “My Octopus Teacher” won an Oscar last month for best documentary, I was reminded of my own cross-species encounter with a rather large insect on the Paw Paw River in southwestern Michigan.

Between 2010 and 2020, Chicago’s canopy cover decreased from 19% to 16%, largely due to the loss of mature ash trees, according to the 2020 tree census spearheaded by the Morton Arboretum. 

From Friday through Monday, hundreds of cities from around the globe will be competing in this annual challenge to record the most nature observations. Can Chicago improve on its middle-of-the-pack results from 2020? 

Huge swaths of the Midwest were drained to make way for agriculture. UIC’s Kimberly Van Meter is harnessing NASA imagery to hunt for the region’s lost wetlands, the first step toward strategic restoration.

After an anxious 24 hours, bird watchers can relax: Monty, one half of Chicago’s beloved piping plover lovebird duo, has arrived at Montrose Beach Dunes, and been reunited with his mate, Rose.

Rose, one half of Chicago’s beloved piping plover duo, was spotted Sunday at Montrose Beach Dunes. The hope is that Monty, winging his way from Texas, won’t be far behind. 

Nearly 90% of Chicago’s parks are managed without the use of weed control chemicals. We’ve got tips for how to follow suit.

For the first time, an international team of scientists has been able to successfully grow monkey embryos containing human cells, sparking fears of human-monkey hybrids. We go behind the headlines to understand the science.

At numerous natural areas across the forest preserve district, low-lying “spring ephemeral” plants are flowering in the kind of sunlight they haven’t enjoyed in decades, thanks to ecological restoration projects.

“Wild Color,” making its debut in October, will immerse visitors in all the colors of nature, while returning fan favorite “Biomechanics: The Machine Inside” will explore the engineering behind the bodies of humans and animals.

Friends of Illinois Nature Preserves was founded last year to increase support for and restoration of the state’s most precious lands, which boast more biodiversity than the Grand Canyon and are more endangered than the Great Barrier Reef.

Determined to close a loophole in a seven-year-old city law, aldermen advanced a measure Monday that would ban pet stores from selling dogs, cats and rabbits at a profit.