University of Florida researchers have come up with a new gene therapy method to disrupt cancer growth by using a synthetic protein to induce blood clotting that cuts off a tumor's blood and nutrient supply.

Those pesky graying hairs that tend to crop up with age really are signs of stress, reveals a new report in the June 12 issue of Cell, a Cell Press publication.

From the valves in a human heart to the quills on a porcupine to the petals on a summer lily, the living world is as varied as it is vast. For this to be possible, the cells that make up these living things must be just as varied. Parent cells must be able to divide in ways that create daughter cells that are different from each other, a process called asymmetric division. Scientists know how this happens in animals, but the process in plants has been a mystery.

Failing to see the forest for the trees may be causing us to overlook the declining health of Wisconsin's forest ecosystems.

What dog owner has not come home to a broken vase or other valuable items and a guilty-looking dog slouching around the house? By ingeniously setting up conditions where the owner was misinformed as to whether their dog had really committed an offense, Alexandra Horowitz, Assistant Professor from Barnard College in New York, uncovered the origins of the "guilty look" in dogs in the recently published "Canine Behaviour and Cognition" Special Issue of Elsevier's Behavioural Processes (http://www.elsevier.com/locate/behavproc).

Jumping genes do most of their jumping, not during the development of sperm and egg cells, but during the development of the embryo itself. The research, published this month in Genes and Development, "challenges standard assumptions on the timing of when mobile DNA, so-called jumping genes, insert into the human genome," says senior author Haig H. Kazazian Jr., MD, Seymour Gray Professor of Molecular Medicine in Genetics at the University of Pennsylvania School of Medicine.