The city is on high alert after two coyote attacks Wednesday, but a wildlife expert says such incidents are very rare. “I don’t think people need to be panicked or alarmed,” said Seth Magle, director of the Urban Wildlife Institute at Lincoln Park Zoo.

Zoo staff had been working with Siku, a 9-year-old male polar bear, for about a year to train him on behaviors that helped staff collect his blood. 

Using satellite images and data on wildlife activity, scientists determined that artificial light levels found in more than a third of the city are altering the circadian rhythm and behaviors of animals throughout the city.

From rare blind salamanders to adorable red wolf pups, here’s our guide to the newest and most unique animals to visit in and around Chicago. 

It’s a colorful sign of summer: brightly colored butterflies floating on the wind. From nature museums to forest preserves to beachfront parks, Chicago has plenty of spots to see these beautiful insects. Here are 10 of the best. 

Mother’s Day was extra special for Rollie, a western lowland gorilla at Lincoln Park Zoo who gave birth to a male last weekend.