SCIENCE

Sabre-toothed cats and bear dogs shared space and food nine million years ago.

Studies shows part of brain that regulates fear and anxiety could play a key role in understand why some troops develop PTSD.

Two specimens of the spade-toothed beaked whale prove the existence of the species, the University of Auckland has said.

The Chalara fraxinea fungus has already killed most of the ash trees in Denmark and has now threatens Britain's 80m trees.

Another storm is predicted to hit mid-Atlantic and New England states bringing snow and heavy rainfall.

Health Protection Agency expert warns 'further cases may be seen' unless action isn't taken.

Elephant at South Korea's Everland Zoo learns to say five words by vocalising words with trunk and mouth.

Scottish teenager fights rare genetic condition of FOP that turns her muscles into bone.

The delayed recovery of UK butterfly populations after extreme drought could threaten species.

Antibodies, DNA strands and genetically modified mice all perish after flood and power cut at Smilow building.

Biological reserve in northern state of Coahuila has similar properties to red planet's Gale crater.

Statistics show lung cancer kills more women than any other form of the disease and fatalities increasing.

Fossil of a 3.3 million-year-old child shows humans abandoned climbing much later than previously thought.

Town grabbed media attention when disproportionate number of girls developed twitching and verbal outburst symptoms of Tourette's.

Scientists identify way of rapidly killing malarial parasite, which claims three million lives a year.

Forecasters say warm fronts carrying dust from the Sahara will result in red rain across the UK.

The Square Kilometre Array (SKA) telescope more powerful than any before, present astronomers' best hope yet of finding intelligent life on other planets.

Area of brain involved in empathy is considerably smaller in severely anti-social teenage girls.

Although weight loss does not cut heart disease risk, there are other health benefits.

Stockton-on-Tees engineers develop 'air capture' technology to make synthetic petrol from carbon dioxide in atmosphere.

Testosterone levels in obese teenage boys are significantly lower than those who are a healthy weight.

Earth-like planet is orbiting a star in the Alpha Centauri system, which is located very close to our solar system.

Research scientist Andrew Voak puts zombies under the microscope and tells us whether a zombie apocalypse is imminent

Number of breast cancer patients aged over 65 will reach one million within 30 years.

'Unusual' Jake Matijevic rock found by Curiosity Rover was formed in a similar way to applejack liquor, say scientists.

The 25 most endangered primate species include Red Ruffed Lemur, Rondo dwarf galago, Madame Berthe’s Mouse Lemur, Roloway monkey, Grauer’s gorilla and more.

Endeavour, which once flew at 17,000mph, is on a slow, fascinating road trip to museum.

Spending just two-and-a-half minutes exercising burns equivalent of a Kit-Kat, study finds.

Scientists believe planet twice the size of earth is biggest diamond in universe.