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A paternity test revealed that Miyagi, one of three male Japanese macaques at Lincoln Park Zoo, is the sire of all four Japanese macaques born at the zoo since 2014. (Todd Rosenberg / Lincoln Park Zoo)

A paternity test to determine the sire of four Japanese macaques born since 2014 at Lincoln Park Zoo came back with a surprising result. 

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(Brenna Hernandez / © Shedd Aquarium)

Meet Drake, Magdalena, Pebbles and Wellington. They are the first penguins to turn 30 at Shedd Aquarium, and among the oldest penguins in human care across the U.S.

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Bird enthusiasts are enjoying an “invasion” of snowy owls in Chicago and across northeastern Illinois this winter. Check out our map of recent snowy owl sightings.  

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(Courtesy Chicago Zoological Society)

From siblings with snowballs to wrestling chimpanzees, playful behavior is usually easy to spot. But the question of why we play – and whether we all play for the same reasons – is less apparent.

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For 70 years, hunters have been shooting waterfowl at Wolf Lake on the city’s Far South Side. It is the only state park within city limits, and one of the only places to hunt in Chicago. We go for a visit.

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(Brenna Hernandez / © Shedd Aquarium)

Over the past year, staff from Shedd Aquarium’s Animal Response Team have come to the aid of animals across the globe. Here’s an update on how some of them are doing.

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Conservation groups say the federal government needs to spend more to save monarchs, the beloved black-and-orange insects whose population has dropped in recent decades.

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(Nanamac47 / Wikimedia Commons)

Horse-drawn carriage rides are popular with tourists, but animal welfare advocates say the practice is inhumane—and that Chicago’s three carriage companies are routinely breaking the rules.

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Calumet River (Courtesy Friends of the Chicago River)

A new $960,000 grant will improve 2.5 miles of streams for nearly 20 species of fish and create 10 acres of neighborhood green space in the Chicago-Calumet region. 

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(Mexican Wolf Interagency Field Team / Chicago Zoological Society)

A Mexican wolf pup born this spring at Brookfield Zoo and released into the wild as part of a species recovery program was tracked down in New Mexico and is healthy, the zoo announced this week.

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Monarch butterfly populations have dropped by more than 80 percent over the past two decades. A bill approved this week aims to boost the monarch’s recovery by protecting milkweed, a plant that serves as the butterfly’s only source of food. 

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(Julia Fuller / Lincoln Park Zoo)

You’ll need to look closely to spot Lincoln Park Zoo’s new baby monkey. The infant, born Oct. 15 to first-time parents, is barely visible as it clings to its mother’s neck.

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(Courtesy Brookfield Zoo)

One of the oldest giraffes in a North American zoo died last week. At 27, she had surpassed the median life expectancy for giraffes, which is about 17-20 years.

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(Jim Schulz / Chicago Zoological Society)

One of Brookfield Zoo’s newest tenants recently emerged from her mom’s pouch and can now be seen at the zoo’s Australia House.  

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(Hanna Knutsson / Flickr)

University of Chicago paleontologist Neil Shubin returns for another review of stories making headlines in the world of science. 

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(Jonathunder / Wikimedia Commons)

The remarkable comeback of 13 sport fish species in the Illinois River began just after implementation of the Clean Water Act, according to a new study by the Illinois Natural History Survey.