The days of whining drills and shrieking patients that can make a trip to the dentist an experience to dread may be numbered, according to scientists who claim that they may have found a way to regrow rotting teeth. Researchers studying tooth development have singled out a gene that controls the gro...

People who stay cool in a crisis may be natural born heroes, according to psychiatrists investigating how soldiers behave in stressful situations. Blood tests on war veterans showed that a minority were almost oblivious to stress and were able to think clearly in spite of the dangerous situations th...

Scientists have unravelled the genetic make-up of the Neanderthal, the long-faced, barrel-chested relative of modern humans. Anthropologists analysed more than a billion fragments of ancient DNA plucked from three Croatian fossils to reconstruct a first draft of the Neanderthal genome. The extraordi...

An experimental fusion reactor that will recreate the conditions at the heart of the sun to create cheap green power could cost twice as much as governments had planned for, the Guardian has learned. The flagship project, which absorbs almost half of Britain's energy research budget, will test compl...

The Science Museum in London is running an exhibition until the end of May called Future Foods. It attempts to give a balanced view of the pros and cons of genetically modified crops, which are back on the agenda in the light of fears over a major food crisis. It does a good job too. As part of the ...

When it comes to wrapping up on a cold winter's day, a cosy hat is obligatory. After all, most of our body heat is lost through our heads – or so we are led to believe. Closer inspection of heat loss in the hatless, however, reveals the claim to be nonsense, say scientists who have dispelled this ...

Animal welfare officers yesterday urged zoos to phase out keeping elephants, after two damning reports found the animals suffer serious health problems and die much younger in captivity. Elephants born and raised in zoos live less than half as long as those living in their native Africa and Asia, de...

Neuroscientists say larger right hemisphere explains why straight men and lesbians are better navigators...

Doctors claim to have found the first compelling evidence that the G spot exists, but say not all women appear to have one. Ultrasound scans revealed clear anatomical differences between women who said they experienced vaginal orgasms and a group of women who did not. The scans identified a region o...

Small deer-like animal that waded in lagoons 10 million years ago may have evolved into the whale as we know it today...