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An outcrop of 400-million-year-old dolostone at Chicago’s Palmisano Park. (Patty Wetli / WTTW News)

Dolostone beat out sandstone and limestone for the honor of state rock. Never heard of it? Join us for a deep dive.

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(Credit: Jay Young)

The Field Museum renovated its Native North America Hall and drastically shifted its focus. The new approach emphasizes story-telling and contemporary art – as well as historical items from the collection. The exhibition space is called “Native Truths: Our Voices, Our Stories.”

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Eggs in the Field Museum’s collection. (Patty Wetli / WTTW News)

Decorated eggs are a centuries-old Easter tradition, but nature’s been at it eons longer — no dyes required. Take a look inside the Field Museum’s egg collection. 

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The Field Museum’s historic egg collection is shedding new light on climate change. (Patty Wetli / WTTW News)

A new study led by the Field Museum shows that a number of bird species are laying their eggs nearly a month earlier than 100 years ago, likely due to climate change.

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Jurassic Oceans: Monsters of the Deep will be on view at the Field Museum until Sept. 5, 2022. (Field Museum / Michelle Kuo)

The Field Museum is diving deep to introduce visitors to underwater wildlife that lived 200 million years ago. We have a preview of the exhibition “Jurassic Oceans – Monsters of the Deep.”

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(WTTW News)

Delivering on a promise she made when the owners of the Chicago Bears announced their purchase of the Arlington International Racecourse property, Mayor Lori Lightfoot announced the members of a working group tasked with reimagining the city’s lakefront museum campus.

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A prehistoric stone tool discovered during a recent archeological dig at Midewin National Tallgrass Prairie. (Courtesy of Bill Parkinson)

With new tools at their disposal, archeologists are revisiting a prehistoric site discovered 40 years ago at what’s now Midewin National Tallgrass Prairie. “What we have here is a real unique opportunity to talk about how humans used this landscape over the last 10,000 years,” one researcher said. 

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The tiny yellow-breasted Kirtland's warbler was only recently de-listed as an endangered species. (Joel Trick / U.S. Fish and Wildlife Service)

Chicago scientist Heather Skeen studied the gut bacteria of the migratory Kirtland’s warbler and made a surprising discovery with potentially far-reaching implications.

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Modern sunbirds also have long tail feathers. (Jason Weckstein / The Field Museum)

Scientists have uncovered the fossil of a bird that lived 120 million years ago, and it definitely had flair, including unusually long tail feathers. These flashy feathers probably didn’t help the bird achieve aerodynamic flight, but they might have helped him find a mate, according to new research.

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Spotted skunk specimens in the Field Museum's collection. DNA analysis revealed new species. (Patty Wetli / WTTW News)

People who don’t study mammals for a living may be surprised to learn there’s more than one kind of skunk — and scientists affiliated with the Field Museum have uncovered members that had been hiding in plain sight.

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Specimens of the extinct Xerces blue butterfly, in the Field Museum's collection. (Courtesy of Field Museum)

Despite its diminutive size, the butterfly famed for its iridescent wings is a giant within the conservation movement, cited as the first case of an insect extinction that can be attributed to urban development.

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Mojina Jinuna Mote, holding a photo of herself taken in 1947. Mote’s story is part of a new exhibit on the Marshall Islands at the Field Museum. (Courtesy of the Field Museum)

A photo snapped by a Field Museum anthropologist in 1947 was labeled “schoolgirl” for 72 years. That student now has a name, and her story is part of a new exhibit about the Marshall Islands. 

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Shedd Aquarium’s Wild Reef shark habitat exhibit. (Brenna Hernandez / Shedd Aquarium)

To coincide with the reopening of Chicago, a number of museums will stay open late on Friday for an after-hours experience.

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The Field Museum has more than 2 million fish in its research collections. (Patty Wetli / WTTW News)

Millions of specimens collected by the Field, not for exhibits but for scientific study, are unlocking mysteries of evolution and could answer questions about climate change.

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Specimens of the round goby were among the species included in the micro plastics study. (U.S. Fish and Wildlife Service / Eric Engbretson)

Working with specimens in the Field Museum’s collections, researchers from Loyola University Chicago found microplastics in fish dating back to the 1950s. “Plastic is everywhere,” the scientists said. 

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A luna moth, featured in "Biomechanics," uses its bushy antennae to smell mates up to seven miles away. (Courtesy of Field Museum)

“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.