A new program aims to create or preserve nearly 2 million acres of habitat across the U.S. for monarch butterflies, which could face extinction in 20 years. 

Though not a terribly romantic process, walleye breeding at the Cook County Forest Preserve District produces thousands of young fish for county lakes. We take a closer look.

Brookfield Zoo welcomed two newborn Amur leopards in April. The male cubs are scheduled to make their public debut in mid-July. 

Maxine, a bottlenose dolphin at Brookfield Zoo, died June 2 after suffering an acute bacterial infection, the zoo announced Tuesday. 

We peek behind the scenes at an exotic butterfly sanctuary in Chicago, and learn how volunteers help scientists track butterfly populations.

When it comes to picking a place to live, many Chicago-area mice tend to be city dwellers rather than suburbanites, according to initial results from an ongoing study by Lincoln Park Zoo.

A tiny black speck contained within fossilized resin turned out to be the remains of an insect so ancient that it lived among dinosaurs.

If you’re not ready to raise chickens in your backyard, you could try your hand at another popular trend: urban beekeeping.

A set of proteins long used to evaluate the well-being of humans can also serve as a marker for the welfare of animals in zoos and aquariums, according to a new study. 

Why the Peggy Notebaert Nature Museum wants you to keep your eye out for baby turtles on the move.

The latest member of Brookfield Zoo’s four-generation family of western lowland gorillas was born June 1, the third offspring of Koola, the newborn’s 23-year-old mother. 

A growing number of states are taking up bans on the sale of ivory in an effort to curb elephant and rhinoceros poaching and undermine the $20 billion-per-year enterprise of wildlife trafficking. Illinois could be next.

Get a close-up look at 100 live eight-legged critters – aka arachnids – including spiders, scorpions, tarantulas and more at Brookfield Zoo.

The discovery of a fossilized skull in Utah suggests the divide of the ancient supercontinent, Pangea, occurred 15 million years later than previously believed, according to a new study. 

A new zoo resident born in downstate Peoria stands about 9 feet tall. Guests can see the 2-year-old giraffe Finely at the zoo’s Regenstein African Journey exhibit.

“From Swans to Science: 150 Years of Lincoln Park Zoo” takes visitors on a journey through the zoo’s 150-year history, which started with a gift of four swans in 1868.