BBC

Viable mouse sperm stored in space gives hope for sperm banks on the Moon, a Japanese team says.

Nepalese mountain guides have a physiology that uses oxygen more efficiently lowlanders.

A waste disposal firm claims that plastic drinking straws are "the ultimate in human wastefulness".

One is up a river estuary, the other is awaiting removal from a beach.

Experts are warning against feeding and getting too close to wild animals after a sea lion pulled a young girl underwater.

The nest in the Cairngorms in which three osprey chicks had hatched now appears to have been abandoned.

Make science and research a priority in Brexit talks, says Russell Group.

Contraception wasn’t just socially groundbreaking - it also changed the professional landscape.

Look but don't touch as it tumbles down the Pulama Pali slope in Hawaii.

The world's highest mountain poses new hazards after the collapse of a key rocky outcrop.

A key component of the UK's first high-energy proton beam machine is delivered to its new home in Newport.

Measures are announced after water enters a frozen facility guarding the world's key crop seeds.

A Humboldt penguin chick has hatched at a sea life sanctuary for the first time in more than a decade.

Locals say sheep on Agios Efstratios are starving as so much plant life is being devoured by swarms.

Shutting down wind farms when birds pass over is one of the methods being tested to save migrating species.

The vast reserves of methane hydrates under the bottom of the sea could be key to future energy needs.

Zafer Kizilkaya's conservation work saved a whole Turkish community and despite resistance his fish model is being widely adopted. He has just been awarded the 2017 Whitley Gold Award.

Whether or not the US is involved in global talks, the US will also feel the impacts of climate change.

Nasa is seeking the best ideas for experiments to fly on a mission that will land on Jupiter's moon Europa.

The packaging for Pringles and Lucozade Sport is among the most difficult to recycle, a trade body says.