The Field Museum opens its hidden collections to display artifacts and specimens from 120 years ago. We get a preview of Opening the Vaults: Wonders of the 1893 World’s Fair. View a slideshow of images from the exhibit.

A book called How We Do It: The Evolution and Future of Human Reproduction explores the science of sex and childbirth. We revisit a conversation with the book's author. Read an excerpt.

On this edition of Chicago Tonight's Field Trip, Jim Louderman, a researcher from The Field Museum, takes us to Northerly Island to collect a sample of bugs. Watch episode 3 of our web series.

Playful painter, serious warrior: meet Bunky Echo-Hawk.

A new carnivorous mammal is now on display at The Field Museum. Described as a cross between a cat and a teddy bear, the Olinguito was part of the museum's collection for decades. Bill Stanley, the Field's mammals collections manager, brings the specimen to our studios. Watch Emily Graslie's "The Brain Scoop" video about the Olinguito.

We take an exclusive look at The Field Museum’s Dermestid Beetle Colony in the first episode of our online series, Chicago Tonight's "Field Trip." Watch the video.

YouTube personality Emily Graslie, creator of the "The Brain Scoop” channel, joins us to talk about her new gig at the Field Museum as its Chief Curiosity Correspondent. She will also bring some friends from the Field’s collections to share. Watch Emily's online science videos.

The famous Lascaux Caves of southern France -- or at least a life-sized replica of them --are now in Chicago. We revisit a preview of the exhibit at the Field Museum. Watch web extra videos and view a slideshow.

Fifty-two million years ago, after the extinction of dinosaurs, a tropical lake basin surrounded by volcanoes was home to thousands of diverse species. Now that basin is known as Wyoming's Fossil Lake, with some of the most well-preserved fossils in the world. The Field Museum's Lance Grande brings us some of his fantastic finds from The Lost World of Fossil Lake. Read an interview with Grande and view photos.

The Art of Migration, a new book by Peggy Macnamara, animates the journey birds and insects embark on during migration in her vibrant watercolor illustrations.

A new book called How We Do It: The Evolution and Future of Human Reproduction explores the science of sex and childbirth. Read an excerpt.

The world's largest free blues festival, ancient mummies brought (nearly) back to life, and a celebration of Indian arts and culture; Chicago Tonight knows what's going on this weekend.

Pieces of a famed Russian meteorite land at the Field Museum. Eddie Arruza has the story.

Fashion at the Field Museum. We join designer Maria Pinto as she digs deep into the museum's collection for an exhibit about cross-cultural clothing.

The famous Lascaux Caves of southern France -- or at least a life-sized replica of them --are now in Chicago. We have a preview of the new exhibit at the Field Museum.