Scientists studying one of the most mysterious whale species find they form long-term alliances, sometimes lasting many years.
Scientists in Italy find that baby chickens associate low and high numbers with left and right, respectively - suggesting they may count using a "mental number line" like humans do.
Belief in the reality of climate change has risen among the British public, partly because of the 2013 winter floods, according to a report.
Listening to icebergs could help to assess the extent of glacier melt, a study suggests.
An ancient skull discovered in Israel could shed light on the migration of modern humans out of Africa some 60,000 years ago.
Scientists at the Institut Pasteur in France who are tracking the Ebola outbreak in Guinea say the virus has mutated.
Royal Dutch Shell revives Arctic drilling plans, despite announcing a $15bn cut in global spending and profit figures that disappointed investors.
Astra Zeneca announces a research programme to develop a generation of medicines to treat the genetic causes of many debilitating diseases.
The Scottish government announces a block on planned fracking operations, pending the outcome of further inquiries.
Nasa's Curiosity rover gets straight back to work after a software upgrade by drilling a new test hole.
Experts are pinning their hopes on in-vitro fertilisation (IVF) to save the northern white rhino from extinction.
Cutting carbon emissions can be achieved while improving living standards - but big trade-offs in land use and energy are needed, say ministers.
An ancient solar system similar to our own is discovered by scientists at the University of Birmingham studying data from the Kepler telescope.
Astronomers say they have discovered a gigantic ring system around a distant planet - the first such structure discovered outside our Solar System.
London's Natural History Museum is re-modelling its entrance, moving out the famous Diplodocus skeleton and moving in the bones of a blue whale.
The world's largest museum and research institution could be heading for London as part of a multi-million dollar redevelopment of the 2012 Queen Elizabeth Olympic Park.
The best image ever acquired of Ceres, the largest asteroid in the Solar System, is now in the hands of science.
The chief of one of Microsoft's research divisions says he does not believe artificial intelligence systems are going to run out of control, threatening humankind.
Scientists who tracked the large asteroid 2004 BL86 as it passed by Earth say it has a small satellite.
New high-speed video footage suggests that the classic chemistry explosion of an alkali metal in water is driven by positive charges repelling each other.
England's natural environment is in decline and its deterioration is harming the economy, an independent advisory group warns.
Extreme weather arising from a climate phenomenon in the Pacific Ocean will get much worse as the world warms, according to climate modelling.
Scientists need to work together to capitalise on a growing body of evidence showing a link between biodiversity and human wellbeing, a US review suggests.
President Barack Obama is to propose setting aside the majority of Alaska's national wildlife refuge as a wilderness area.
Two of the rarest birds of prey in England, which had been satellite tagged, vanish in unexplained circumstances.
"Restaurants" of dead meat set up for endangered vultures also attract an undesirable clientele of hyenas and jackals, according to a six-year study.
Brazilian researchers release thousands of mosquitoes infected with a bacteria that suppresses dengue fever into the environment in Rio de Janeiro.
The giant bottlenose whale - one of the most mysterious marine mammals - forms long-term alliances that last many years, footage reveals.
Pharmaceutical giant AstraZeneca has announced a research programme to develop a new generation of medicines to treat the genetic causes of many debilitating diseases.
Claire Marshall looks at the impact beavers have on the environment, after a decision to allow a family of wild beavers to stay on the River Otter in Devon.