BBC News

Wild dolphins burn up to 33,000 calories a day, say researchers - equivalent to about 60 salmon portions.

Volcanologists say a "hazardous explosion" could be imminent, as thousands flee the area around Mount Mayon in the Philippines.

The Hubble telescope has scored an unprecedented close-up view of one of the Universe's oldest galaxies.

Donkeys, horses and camels are beaten and forced to carry tourists in extreme heat, a group says.

The unusual sight of a wallaby bounding across the Sydney Harbour Bridge has surprised early-morning motorists.

Human body lice, rather than rat fleas, spread plague during the Black Death, a study simulating the outbreak suggests.

Fuel from the Sanchi has spread over more than 100 sq km and could badly damage marine life.

Watch surgeons as they remove a 19.5kg tumour from a woman's body.

Scientists solve Darwin's "abominable mystery": How flowers rapidly evolved and spread across the globe.

Can a series of scorching summers be blamed on climate change, and what do they tell us?

The first panda ever born in France has gone on display to the public.

Minnie Winnie was created by science after her owner won a competition.

The UK has the lowest percentage of female engineering professionals in Europe, at less than 10%.

They weigh about 1kg and their eyes are six times more powerful than ours.

Astronomy enthusiasts help to confirm the existence of a five-planet system orbiting a far-off star.

The spacecraft paves the way to a constellation collecting full-colour, hi-def video of Earth.

A massive black hole is seen to eject streams of high-energy particles after bingeing on hot gas.

Many high street stores use plastic to protect their fruit and vegetables.

With water usage and droughts across the globe rising, the race is on to manage water more efficiently.

Theresa May's environment policy pledge is the latest step in the party's journey on the issue.

Campaigners say "emergency" action is needed now as the PM unveils a 25-year plastics crackdown.

Theresa May launches a 25-year environmental plan, but green groups say it has no legal force.

In Switzerland, lobsters must now be stunned before being boiled - but do they really feel pain?

Ben Saunders has led 13 expeditions since 2001 and has walked around 4,000 miles in skies.

Curiosity has reached a part of the Red Planet with geology named after places across Scotland.

A discrepancy in measurements of the Universe's expansion rate has now become "pretty serious".

The newly found bat is said to be three times the size of an average bat today.

Local residents take part in a day-long experiment to cut traffic and improve air quality.

Newly discovered fossils in Germany shed light on the emergence of butterflies and moths.

Astronomers have fresh insight on a mysterious source of recurring radio pulses from space.

Governor Rick Scott successfully fights off President Trump's plans, with more opposition expected.

Enter your postcode to see what the air quality is like where you are living in Britain.

Corner shops could be told to charge shoppers for single-use carrier bags under new government plans.

A telescope inside a jumbo jet yields new insights on how stars are born from collapsing gas and dust.

Norishige Kanai says he has actually grown 2cm in space in three weeks, blaming a measuring mistake.

A marine biologist says a humpback whale saved her from a shark during a recent research expedition

The reptiles employ a clever trick when the water they live in freezes over

Who is the new man in charge of higher education in England?

Green sea turtles' gender is temperature dependent and there are now too many females.

A final batch order is raised for the Ariane 5 - the workhorse European rocket of the last 20 years.

Tourists are flocking to see the giant water lilies, which locals had thought were extinct.

Norishige Kanai says he is worried he will not be able fit in his Soyuz seat for the return to Earth.

Several years in the making, it sets out how seas should be used and protected in the next 20 years.

BBC to review policy of allowing ivory items on the show amid criticism from a wildlife campaigner.

Scientists show how the floating fronts of Antarctic glaciers respond to events in the tropical Pacific.

Fires, hurricanes and other weather and climate disasters last year cost the US around $306bn in losses.

The frequency a dog raises it's 'inner eyebrow' influences how quickly it finds a new home

'Ribbon of woodland' will be planted, but critics say other projects are destroying ancient forests.

US astronaut John Young, who flew to the moon twice and commanded the first ever space shuttle mission, has died aged 87, Nasa said.

He was the only person to have flown missions on the Gemini, Apollo and space shuttle programmes.