Talking heads: What toilets and sewers tell us about ancient Roman sanitation
The streets of a Roman city would have been cluttered with all sorts of human waste before sewers
Hobbit teeth shows Homo floresiensis was unique species that shrank after getting stranded on Flores
Study of Homo floresiensis teeth shows it was unique species – not a human with growth disorder.
China releases its fifth captive-bred giant panda into the wild
The breeding programme has produced mixed results so far.
Ecuador: Tungurahua volcano erupts covering houses with ash
Authorities issue orange alert as ash cloud reaches 2,500 metres above crater.
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Cancer-free Tasmanian Devils returned to homeland in a bid to save species from extinction
Group of 22 healthy Tasmanian Devils sent home to save species from cancer that threatens them with extinction.
Italy: Dark Ages burning of young 'witch' revealed after pit excavated
The girl would have been no older than 17 and was malnourished when she was burned.
Climate change 'single most important threat' to polar bears, experts warn
International Union for Conservation of Nature warns polar bear population could drop by 30% in 35 years.
China: 2000-year-old smokeless lamps discovered in Han tomb
The lamps point to innovation and awareness about the harmful effects of smoke.
Geoengineering: Blocking out the sun won't fix climate change – but it could buy us time
We should be exploring as many climate engineering options as possible, while limiting greenhouse gas emissions.
Humans share 70% genes with a water worm
The two shared a common ancestor around half a billion years ago.
Breakthrough in graphene production announced
The University of Glasgow has been able to cheaply mass produce graphene.
NIH to retire remaining 50 chimps and stop funding related work
There have been no applications in the last two years for chimp research.
Tadpoles flying across blue sky wins Royal Society Publishing photography competition
An underwater photo of tadpoles silhouetted against the sky has won a science photography competition.
Quantum computing breakthrough: Engineers manage to write quantum code to silicon chip
Successfully programming quantum code means we can start to program a whole quantum computer.
7,000 religious items found in Israel belonged to ancient Palestinian cult
Archaeologists believe that the discovery of the religious artefacts is the 'find of the century'.
Harvard University experiment shows US, Canadian and Ugandan children are the world's fairest
Children in India, Mexico, Peru and Senegal took deals that favoured themselves, however.
The five most Earth-like exoplanets (so far)
Which exoplanets are similar enough to the Earth that they could actually be habitable?
Nasa gives R5 Valkyrie humanoid robot to MIT, Northeastern to develop software for Mars
Nasa wants MIT Csail and Northeastern University to prep Valkyrie to carry out autonomous experiments on Mars.
Are men redundant? Baby mice created using two mothers and no father
Scientists say that sperm is replaceable and a family can be created just using eggs.
Amber Rudd: Renewables rethink 'if, and only if' costs come down
Energy Secretary says renewables will only be supported if conditions of cost reduction are met.
Soaring temperatures and El Nino could ring death knell for corals
High temperatures cause bleaching of corals.
India: Space agency plans monthly satellite launches
Country plans solar and moon missions before 2020, besides considering one to Venus.
Retreating glaciers caused Adelie penguin population explosion over last 14,000 years
Since the last ice age, Adelie penguin populations have seen a 135-fold increase.
Out of this world: ISS astronaut Kjell Lindgren treats Twitter followers to spectacular images of Earth from space
Lindgren Tweets a wide array of images of views from all over the world
Pandas get a surprise snow day in San Diego
A zoo video shows three-year-old Xiao Liwu sliding in the slush and playing with his new toy, a jungle ball.
Extreme laser could heat material to temperatures hotter than Sun's centre in 20 quadrillionths of a second
Super laser that heats material to 10 million degrees has potential in thermonuclear fusion energy.
Paris attacks: Global Climate March could be cancelled as France steps up security for COP21
Global Climate March could be cancelled as France intensifies security.
Mexico: Colima volcano erupts spewing ash 3,000m in to the air
Volcano has been exhibiting continuous activity since 9 July.
Oldest portrait of ancient Chinese philosopher Confucius unearthed by archaeologists
Portrait was found in tomb of Liu He, grandson of Emperor Wu
1700-year-old Roman-era mosaic uncovered in Israel
Ancient artists in Roman Israel possessed advanced artistic skills, reveals an impressive mosaic discovered from the era.
Pakistani farmer wins lawsuit against government over climate policy
The court ordered a commission to examine the policy and do the needful.
Sony World Photography Awards 2016: Beautiful wildlife and landscape images
With just a few weeks left to enter the 2016 Sony World Photography Awards, we present a selection of early submissions.
G20 climate statement found to be weak on commitments as Paris readies for summit
Even as Paris mourns the death of 129 people in the recent terror attacks, the climate summit would be held on schedule.
Seven spectacular weather events – and what causes them
Weather is the response of the atmosphere to the uneven pattern of heat energy that it receives.
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