SCIENCE

It's because of the way early humans shared food and how they moved social groups when mating.

Optogenetics used to target area of the brain related to emotion and motivation to trigger hunting behaviour.

The blizzard conditions that have caused travel misery and power cuts in northern Britain are moving slowly southwards.

The tomb was also reused at a later stage, in the early Islamic Period.

Hairy-legged bat was thought to feed only on bird blood, but human disruption of its habitat made it change tack.

Fossil of a wombat the size of a bull shedding light on how ancient Aboriginals lived.

Hyoliths – invertebrate animals with cone-shaped shells – were closely related to brachiopods, scientists say.

Analysis of baboon vocal tracts and sounds they make show capacity for speech emerged at least 25 million years ago.

The enormous Cuvette Centrale peatland holds about 30 billion tonnes of carbon.

This cold snap has now been blamed for at least 69 deaths, with homeless people and migrants among those most at risk.

Why is it so hard to guess what three white people have in common?

Spy in the Wild hides cameras in artificial animals to document nature's most fascinating wildlife.

The unprecedented discovery reveals details of the history of maternal health in the Byzantine era.

Facebook, Google and Apple all receive top marks in 'clicking clean' analysis.

The poachers were well educated and organised, confirming the need for local initiatives to be established to counter them.

Cold-loving birds are losing their habitats, but some butterflies are thriving.

Fossil discovery shows a major level of brain organisation had occurred in humans at least 1.8 million years ago.

Scientists say discovery could help explain why so many mammals use communal defecation sites.

Speaking at a higher pitch and clearly articulating words is particularly exciting for puppies, but not older dogs.

New research overturns the idea that more ecologically unique species are the most vulnerable.

Astronomers say asteroid 2017 AG13 had similar destructive potential as Chelyabinsk strike in 2013.

Interspecies sex is rarely recorded in the wild – with this case in Japan being only the second.

Dogs were gifted to police in Yakutia by cloning expert Hwang Woo Suk, who wants to bring back the woolly mammoth.

Looking at the genome of over 3,000 humpback whales, scientists have been able to pinpoint conservation priorities.

El Niño and the Pacific Decadal Oscillation also lead to a build-up of toxins in shellfish.

What happens when computers take a look at the historical trends that are too big to see?

Extreme conditions have hit areas of southern Europe more used to mild winters.

Barack Obama has a good reputation when it comes to the environment, but he left quite a few loose ends.

Very Large Telescope will be used to look at the star system and consider the best targets for exploration.