William Mullen

Over the next few years, scientists working on two continents may be able to finally answer the question of why two lions, now stuffed and relatively benign looking in a...

To create the first live butterfly exhibit ever attempted at the annual Chicago Garden and Flower Show, Chicago Academy of Sciences staffers found themselves coaxing butterflies to life during one...

Writing, wheeled carts, the 60-minute hour, sailboats and seed plows are among the things a people called the Sumerians invented in the fabled Fertile Crescent some 5,000 years ago. They...

It has gotten so that when Paul Sereno comes home from a trip abroad, he needs the help of a 100-ton crane to unpack his souvenirs. That's just what the...

About three years ago, a young, impregnated queen started a solitary journey from a tropical forest on the Caribbean island of Trinidad that has now brought her to Chicago with...

Last summer Lincoln Park Zoo cautiously introduced two young and inexperienced Siberian tigers, Sheba and Sikhote, hoping that they would mate and conceive to carry on a new bloodline of...

For the time being, that $8.4 million Tyrannosaurus Rex skeleton the Field Museum bought in auction last October could more correctly be called The Dino Formerly Known As Sue. For...

Anybody who has lived through a really tough Chicago winter probably has at one time or another jokingly cursed about the place being like Siberia. It turns out that is...

One of the city's great museum attractions from an earlier era, the Atwood Celestial Sphere, will be given a new permanent home Tuesday afternoon when the 15-foot steel globe is...

A bizarre accident in a Georgia animal laboratory that seemed unlikely to occur by ordinary laws of chance has killed a 22-year-old lab assistant exposed to a herpes virus in...