Geoffrey Baer solves the mystery of a viewer’s “vague memory” from the 1940s, revisits the Century of Progress and opens the door to the Evanston History Center in this encore edition of “Ask Geoffrey.”

After spending their first weeks learning to swim and bonding with their mothers, Lucy and Taylor make their public debut.

Like many humans approaching their elder years, a 49-year-old western lowland gorilla named Ramar has been dealing with knee pain.

Customized activity monitoring devices are helping Brookfield Zoo staff study sleeping patterns and other behaviors in giraffes. 

For the first time, Brookfield Zoo is exhibiting a pangolin, a rare animal native to Africa and Asia.

Just in time for Easter, a reindeer named Bunny gives birth to a male fawn – the first reindeer born at Brookfield Zoo since 1980. 

The ethical debate over zoos – and whether animals belong in them – has resurfaced over the past year, and now Brookfield Zoo is joining the discussion.

Geoffrey Baer solves the mystery of a viewer’s “vague memory” from the 1940s, revisits an exhibit at the Century of Progress and opens the door to the Evanston History Center.

Ring in the New Year with live music, comedy, DJ beats, burlesque and bubbly this weekend. Here are 10 parties in and around Chicago.

The newborn female Bornean orangutan joins five other orangutans living at the Brookfield Zoo.

Neighborhood holiday markets, outsider art, cyclocross and Jerry Seinfeld usher in the weekend. Here are 10 things to do in and around Chicago.

What happens when a lion gets a toothache? Meet the large and dedicated team that cares for more than 3,000 animals at Brookfield Zoo. 

Strange foods, fall benefits, a “Game of Thrones” parody and massive art show usher in the weekend. Here are 10 things to do in and around Chicago.

Two Mexican gray wolf pups born at Brookfield Zoo last month were released into the Arizona wilderness as part of a carefully timed conservation effort. The species has been threatened by extinction for over half a century.

Celebrate spring weather and the planet with a bounty of events, from feminist films to fireworks and a culinary smackdown to classical music.

Celebrate St. Patrick's Day a little early with three parades and the annual river dyeing. Live music, some impressive Lego-building skills and an acclaimed dance company round things out.