Researchers at UT Southwestern Medical Center have identified a group of fruit fly gene mutations responsible for "broken hearts" in the embryonic stages of development, a discovery that could help identify genes that cause human heart defects.

Bubbles: You've bathed in them, popped them, endured bad song lyrics about them. Now, University of Michigan researchers hope to add a more sophisticated application to the list---gas bubbles used like corks to block oxygen flow to tumors, or to deliver drugs.

The ability to spot venomous snakes may have played a major role in the evolution of monkeys, apes and humans, according to a new hypothesis by Lynne Isbell, professor of anthropology at UC Davis. The work is published in the July issue of the Journal of Human Evolution.

Critical advances in medicine and environmental protection promise to emerge from a new method for biochemical analysis of fluids developed by an international science team led in part by Arizona State University researchers.

The most comprehensive scientific study of tiger habitats ever done finds that the big cats reside in 40 percent less habitat than they were thought to a decade ago. The tigers now occupy only 7 percent of their historic range.

Cornell researchers have found that a deadly fish virus detected in the northeastern United States for the first time in June in two species has probably spread to at least two more. But they have yet to determine whether the virus is responsible for the death of hundreds of fish in Lake Ontario and the St. Lawrence River in recent weeks.

For the first time, research has shown that the autistic brain has fewer neurons in an area related to emotion and social behavior, according to a new study published in the July 19 issue of The Journal of Neuroscience.

Researchers have found that abnormal stimulation of a cellular trigger that normally regulates replenishment of brain cells in adults causes invasive tumor-like growths in mice. Removing the abnormal stimulation causes the growths to regress--a finding the researchers said suggests a possible treatment for the lethal, aggressive brain tumors called malignant gliomas.

The most aggressive form of breast cancer may originate from breast stem cells that have undergone genetic mishaps.