William Mullen

They were like star-crossed strangers in the night, one exiting a jet plane that the other soon boarded, would-be lovers whose lives almost touched but didn't just past midnight at...

Ferocious as she was, Sue, the Field Museum's splendid 67-million-year-old Tyrannosaurus rex fossil, probably was a 7-ton plodder who literally shuffled through her world. But she may have done so...

Richard Leakey has achieved global fame in two different arenas. A white European born in Kenya in 1944, Leakey has nearly eclipsed his parents' fame with his own discoveries in...

In fine fighting fettle, the Peggy Notebaert Nature Museum has marshaled squads of exotic fliers never before seen in these parts to compete in Chicago's burgeoning butterfly wars. In the...

Just at the time ancient Egyptians were erecting their first major pyramids along the Nile River 4,600 years ago, a heretofore unknown New World civilization began building huge pyramids near...

Three pairs of wild sandhill cranes are back in a place called English Prairie in McHenry County, males and females dancing for each other in preparation of nesting and breeding....

When his baby, thought to be a boy, was born early Wednesday, Ramar, Brookfield's 33-year-old gorilla male, acted as though the event was old hat to him. "He is acting...

For a man possessed of one of history's most monumental egos, Assyrian King Sargon II had a humbling end: slain in ambush during a military campaign in Syria--perhaps by his...

For months now, Lincoln Park Zoo's largest building has been emptied of elephants, rhinos, hippos and giraffes. These days the big beasts roaring and rearing their long necks inside are...

For the last week, a year-old polar bear named Eddy has turned Brookfield Zoo into a very public and boisterous classroom in which a human-raised female cub is learning how...