William Mullen

Hundreds of original fine-arts photographs from the 1930s, many of which were displayed at the Century of Progress world's fair of 1933-1934, go on sale Tuesday from collections at the...

Gregor Mendel made a scientific discovery 150 years ago that continues to revolutionize the world today, but nobody at the time took notice. In fact Mendel, a gentle Augustinian friar...

The beluga whale habitats have been dark and eerily silent lately. Normally noisy and crowded with visitors during the day, the underwater viewing areas are empty except for a few...

Bubba, a huge, personable fish who three years ago became a hero to cancer patients after undergoing surgery and chemotherapy to get rid of a malignant tumor, died Tuesday at...

Closed since December, the newly named Chicago History Museum (the former Chicago Historical Society) this week is lifting construction drop cloths throughout its main galleries to give a preview of...

The popularity of a Brookfield Zoo team's efforts to free Scrappy the dolphin just goes to show that everyone loves a good fish tale, making this the most e-mailed story...

A lucky adolescent male bottlenose dolphin is back to living nude and free in Florida's Sarasota Bay after making a potentially fatal wardrobe choice early this summer. The 10-year-old dolphin,...

Zenon Lukosius' understanding boss in the early 1950s frequently had to call the roofer down from his work atop two- and three-flats and factory buildings across the city, telling Lukosius...

After pairing off for life in some unknown wintering water hole, a young female trumpeter swan and her even younger mate soared over the Mississippi shorelines of northwestern Illinois late...

A nicely painted but none-too-fancy 2,200-year-old Egyptian coffin that stirred up a hornet's nest of trouble late in May has joined the Field Museum's permanent exhibits on daily life in...