Jeremy Manier

Doctors for Mayor Richard M. Daley on Sunday attempted to rule out life-threatening causes for chest pains that hospitalized him over the weekend, marking the mayor's first thorough medical evaluation...

The British firm that cloned Dolly the sheep said Tuesday that it has taken a further step by breeding the first clones of pigs, in what experts said could be...

The Shedd Aquarium has lost another beluga whale. Immiayuk, a 14-year-old female who gave birth Aug. 3 to a female calf, Kayavak (both shown here in August), died late Sunday...

One of the enduring mysteries of paleontology is the disappearance of the Neanderthals, the reputedly dimwitted and hapless cousins of modern humans who have inhabited popular culture in unflattering incarnations....

Even as the University of Illinois at Chicago labors to correct problems that have suspended human research at the school, unprecedented growth in experiments using human subjects nationwide has created...

Some residents of Dixon, Ill., thought the shaking they felt at 11:17 a.m. Thursday was a bomb. Others registered it as the normal rumbling of traffic. Still others didn't notice...

Three years ago, researchers in the psychiatry department at the University of Illinois at Chicago recruited a patient for what they told her was a study using high-tech brain scans...

In a frightening echo of 1995's heat disaster, the hottest days in the Chicago area in four years claimed as many as 57 lives Friday and early Saturday, amid power...

As scorching daytime temperatures in the 90s were poised to remain in place throughout the weekend and two heat-related deaths were reported in Chicago Friday, experts said relatively cool overnights...

An unprecedented report on the systematic discrimination against women faculty at the Massachusetts Institute of Technology, one of the nation's premier science and engineering research institutions, has generated a wave...