Invasive carp inch closer to Lake Michigan
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Work has resumed on a key Brandon Road Lock and Dam barrier project after a nearly two-month pause, as officials raise concerns about invasive carp moving closer to Lake Michigan.

New tiny wild cat species discovered in Bolivia’s cloud forests

Researchers have identified Leopardus tilcayo, a previously unknown species of tiny wild cat, in Bolivia’s cloud forests, marking the first formal description of a new living cat species in more than a century.

Michigan man missing at Isle Royale National Park

A Michigan man has been reported missing in Isle Royale National Park. A search operation is currently underway by the National Park Service.

Massive bird migration: Most over Wisconsin, 550M across US

Woah! Hundreds of millions of birds were migrating across the country on Wednesday night, with the highest concentration over Wisconsin.

What's behind the growing number of bear encounters in the US this year

Bear encounters with humans are on the rise, especially in the Rocky Mountains, where the summer drought has bears seeking food in urban areas, leading to encounters with humans.

Watch: Mystery animal attacks man in New Hampshire parking lot

A mystery animal attacked a man in a Lebanon, New Hampshire, parking lot, surveillance video released by police shows.

Asian tiger mosquitoes are invading Chicagoland — here’s how to protect yourself
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The invasive mosquitoes are biting aggressively during the day and multiplying in backyard standing water, while experts share simple ways to keep them away and reduce the risk of mosquito-borne illness.

Chicago reports first West Nile virus death of 2026

Chicago health officials are reporting the city's first two human cases of West Nile virus this year, including the first death linked to the virus in 2026.

Cook County confirms first human West Nile virus cases of season
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Cook County health officials are warning of a high risk of West Nile virus infection after confirming the first four human cases in the suburbs this season.

Rabid bat confirmed in Chicago suburb

A rabid bat has been confirmed in suburban Chicago. Here's what to know.

Peekachu, rescued beluga whale at Shedd Aquarium, dies suddenly

Peekachu, one of eight beluga whales recently rescued from a closed Canadian marine park and brought to Chicago's Shedd Aquarium, died suddenly Tuesday evening.

Why mosquitoes may seem worse than ever in Chicago
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An epidemiologist explains what’s behind this mosquito season, what to know about Asian tiger mosquitoes and how you can protect yourself from bites and mosquito-borne illnesses.

Several deer dead from virus in southeast Wisconsin
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Around 100 deer have been found dead in Washington County following the start of an EHD outbreak. The DNR in Wisconsin is investigating. 

New jaguar sightings in Arizona spark excitement
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Two jaguars spotted near the U.S.-Mexico border are fueling hopes for the species’ return to the United States.

Man busted after customs uncovers bizarre cargo hidden inside 22 pairs of socks

A man was arrested at a Tokyo airport after authorities discovered about 200 lizards stuffed inside 22 pairs of socks in his suitcase, according to reports.

Dozens of deer in Wisconsin dead from EHD

Around 100 deer have been found dead in Washington County following the start of an EHD outbreak. The outbreak is likely to continue until the first frost of the season.