The latest stories from the Science & Environment section of the BBC News web site.
Updated: 6 min 24 sec ago
Scientists warn that an army of organisms from Turkey and Ukraine is poised to invade Britain's waterways and destroy native species.
How the first human to walk in space nearly didn't return to Earth
Archaeologists in Greece uncover a large floor mosaic at a huge burial site at Amphipolis dating to the time of Alexander the Great.
How the US changed the language of science
Can a team of ponies munch a meadow back to life?
A small group of neurons that respond to the hormone oxytocin are key to controlling sexual behaviour in mice, a team finds.
US researchers discover how sidewinders climb sand dunes by studying their motion in the lab and copying it with a robot.
BBC's Tulip Mazumdar visits Ebola-stricken Sierra Leone
The public health challenge posed by the Ebola outbreak is unlike anything since the emergence of HIV/Aids, a top US medical official says.
An international expedition says it has found further, remarkable finds at the site of the famous Antikythera shipwreck.
Scientists unearthed rare, ancient human remains in silts close to the River Seine in France.
Glasgow University becomes the first in the UK to announce it will sell its shares in companies that produce fossil fuels after pressure from students.
Bionic hands restore sense of touch in two patients
The chimp that a rights group wants recognised as a person
The Met Office opens a new centre dedicated to the forecast of the weather in space.
The discovery of 40,000-year-old artworks in Indonesian caves challenges established views on the origins of humans' artistic capabilities.
A new £24.5bn nuclear power station at Hinkley Point in Somerset is to go ahead after it received final approval from European Union regulators.
Dealing with the leftovers from the Dounreay demolition job
A total lunar eclipse has been visible in much of the Americas and East Asia, the second such event of the year.
Nobel Prize for chemistry is awarded to three scientists for their work on boosting the resolution of microscopes.