This rendering of Gryposaurus monumentensis shows its robust jaws that allowed thiscreature to eat just about any vegetation it stumbled across. The newest dinosaur species to emerge from Grand Staircase-Escalante National Monument had some serious bite, according to researchers from the Utah Museum of Natural History at the University of Utah.

The chemical process known as acetylation plays a central role in cytokine receptor signal transduction – a fundamental biochemical cascade inside cells that controls the activity of antiviral and tumor-suppressing genes.

From an evolutionary perspective, the primary task of an organism is to pass along its genes to future generations. Such genetic transmission is usually assumed to be instinctive. However, a new study shows that species also learn to adapt to their surroundings in order to increase their “reproductive fitness”— the likelihood that they will successfully reproduce.

Diagnosing a risk of fatal lung disorders may be possible by analysing the umbilical cords of premature babies, according to research published in the online open access journal Genome Biology. Until now, paediatricians have not been able to predict the development of bronchopulmonary dysplasia (BPD) because of the difficulties with obtaining lung samples.

Researchers have uncovered new evidence in mice that may explain how emotionally charged situations can leave such a powerful mark on our memories. Surges of the stress hormone norepinephrine (also known as noradrenaline) that often accompany strong emotions spark a series of molecular events that ultimately strengthen the connections between neurons, the team reports in the October 5, 2007, issue of the journal Cell, a publication of Cell Press.