One of Britain's best-known species of seabird is increasingly attacking and killing unattended chicks from neighboring nests due to food shortages.

Researchers at the University of Leeds and the Centre for Ecology & Hydrology observed a dramatic increase in the number of adult guillemots deliberately attacking chicks of the same species in the last year. Hundreds of such attacks occurred, and many were fatal, with chicks being pecked to death or flung from cliff ledges.

These disturbing findings, published online today in the Royal Society journal Biology Letters, indicate that social harmony – even in long-established colonies – can break down when conditions get tough, for example if starvation looms. The study highlights a previously unsuspected parental dilemma: should both leave their chick unattended and spend more time feeding, or should one of them remain to protect the chick from attacks from neighboring birds even if it gets less food?

Imagine taking a picture of your favorite hockey team as a child and then again as an adult today. Looking back over a quarter of century, the changes you'd see are significant.

Researchers in the University of Alberta Faculty of Physical Education and Recreation looked at an NHL team over a 26-year cycle and discovered players have become bigger ... and fitter.

They studied 703 players from a Canadian-based NHL team from 1979 to 2005. The physiological profile derived from their research shows that over the 26 seasons, defensemen became taller and heavier as body mass increased; forwards got younger and had higher peak aerobic power outputs for cardio-respiratory endurance, while goalies were shorter and more flexible and had lower peak aerobic power outputs. All players combined (defence, forwards and goaltenders) increased body mass, height and anaerobic power over the 26 years.

A team of researchers at Michigan Technological University is harnessing the computing muscle behind the leading video games to understand the most intricate of real-life systems.

Led by Roshan D'Souza, the group has supercharged agent-based modeling, a powerful but computationally massive forecasting technique, by using the graphic processing units which drive the spectacular imagery beloved of video gamers. In particular, the team aims to model complex biological systems, such as the human immune response to a tuberculosis bacterium.

Agent-based modeling simulates the behaviors of complex systems. It can be used to predict the outcomes of anything from pandemics to the price of pork bellies. It is, as the name suggests, based on individual agents: e.g., sick people and well people, predators and prey, etc. It applies rules that govern how those agents behave under various conditions, sets them loose, and tracks how the system changes over time. The outcomes are unpredictable and can be as surprising as real life.

Schools are set for a Star Trek make-over thanks to the development of the world's first interactive classroom by experts at Durham University.

Researchers at the Technology-Enhanced Learning Research Group (TEL) are designing new learning environments using interactive multi-touch desks that look and act like a large version of an Apple iPhone.

The team observed how students and teachers interact in classes and how Information Communications technology (ICT) could improve collaboration. They then set about designing an interactive classroom solution called 'SynergyNet' to reflect TEL's aims of achieving active student engagement and learning by sharing, problem-solving and creating.

Our body is almost constantly being threatened by pathogens and cancerous cells that appear out of the blue, but our bodies put up a fight: specialized cells in the immune system smuggle small molecules (granzymes) into cancer cells and those body cells that have fallen prey to viruses. The molecules then trigger off the diseased cells' built-in suicide program.

There are two possible ways in which the granzymes gain entry into the cells under attack but despite more than twenty years of research, it remained unclear as to which of these pathways is used to smuggle the lethal amount of granzymes into a cell. Scientists at the Max Planck Institute of Neurobiology have now shown that minute pores on the cell surface open the door to the granzymes for a short period of time. These results provide new prospects for improved methods of treatment of chronic virus infections and cancer.

Over half of deaths in women from chronic diseases such as cancer and heart disease could be avoided if they never smoke, keep their weight in check, take exercise and eat a healthy diet low in red meat and trans-fats, according to a study published in BMJ.

Poor diet, lack of physical activity, obesity, alcohol consumption and smoking increase the risk of diseases including cancer and diabetes but little research has examined combinations of lifestyle factors in younger populations and women.

Dr Rob van Dam and his team from the Harvard School of Public Health and Brigham and Women's Hospital, recruited nearly 80 000 women aged 34 to 59 years in 1980 who were part of the Nurses' Health Study in the US. They analyzed the data of over 1.5 million person-years follow up over a 24 year period.