Earlier studies have suggested that omega-3 fatty acids,  found in fatty fish such as salmon and in nuts, benefit thinking skills. A new paper in Neurology, based on a study that involved 2,157 women age 65 to 80 who were enrolled in the Women's Health Initiative clinical trials of hormone therapy,  disputes that.

The women were given annual tests of thinking and memory skills for an average of six years. Blood tests were taken to measure the amount of omega-3s in the participants' blood before the start of the study.

The discovery of what may be the earliest known creature with what can be discerned as a face has been reported in Nature. Entelognathus primordialis is an exceptionally well-preserved 419-million-year-old fish from China that is the most primitive vertebrate to have a modern type of jaw.

This fish is a placoderm, one of a member of an extinct group of gnathostomes (jawed vertebrates), but its jaw is much more like that of a modern bony fish: its discovery may offer a new perspective on the early evolution of these creatures.

Raytheon Company is recognizing 32 teachers from 18 states as "Math Heroes" for their work promoting student enthusiasm and achievement in math. 

Each Math Hero receives a $2,500 award and a matching grant for his or her school. Winners are selected based on compelling submissions from nominators on the effective and creative ways teachers work with students in math, drawing on new and advanced approaches.Nominations were done by students, parents and school administrators.

The "green seed problem" is a long-standing issue that causes millions of dollars annually in canola crop losses for Canada.

Canola is the major cash crop in Alberta, which produces about 35 per cent of Canada's canola that generates in the province about $5 billion in revenue annually. Across the country, the oilseed crop, whose seeds are pressed into canola oil, contributes about $15 billion a year to the Canadian economy.

However, every year around the time when canola matures, an unpredictable touch of a light frost can damage crop quality and cause severe losses. The discovery of a plant gene regulatory network means plants could be genetically enhanced to prevent green seeds from occurring in mature canola.

A review panel has concluded that the mass stranding of approximately 100 melon-headed whales in the Loza Lagoon system in northwest Madagascar in 2008 was primarily triggered by acoustic stimuli - a multi-beam echosounder system operated by a survey vessel contracted by ExxonMobil Exploration and Production (Northern Madagascar) Limited.

In response to the event and with assistance from The International Fund for Animal Welfare and Wildlife Conservation Society led an international stranding team to help return live whales from the lagoon system to the open sea, and to conduct necropsies on dead whales to determine the cause of death.