BBC News

The loon, which is on Canada's dollar coin, and the eagle, America's national bird, fought to the death.

A review panel finds no technical reason to delay the first US orbital crew launch in nine years.

Locking down the UK sooner would have made a big difference to the death rate, a scientific adviser says.

Better understanding of Covid-19's impact on the immune system gives hope an existing drug might aid recovery.

Plastic pollutants in UK rivers are finding their way into wildlife and moving up the food chain.

Scientists call for the conservation of nature to be at the centre of the economic recovery after the coronavirus pandemic.

Scientists discover a new behaviour among bumblebees that tricks plants into flowering early.

How the loss of the Amazon goes beyond deforestation - and what the nine countries that share this natural resource are doing to protect it.

Nasa's Doug Hurley and Bob Behnken are a week away from their flight to the space station.

Only weeks after reopening, Australia's fire-ravaged Mogo Zoo had to close again because of Covid-19.

UK businessman Sir Richard Branson is looking to Saturday to debut one of his new space systems.

Doug Loverro steps down the week before the US's first crewed launch to orbit in almost a decade.

UK scientists create the first wide-area maps of microscopic algae growing in coastal Antarctica.

People displaced by extreme weather are forced to break Covid-19 social distancing safety guidelines.

A report lists some of the best ways people can tackle their own contribution to climate change.

An analysis shows a huge daily CO2 drop, but a return to car travel may see emissions rebound.

Palaeontologists say the remains date back 70 million years, close to the end of the dinosaurs.

The elaphrosaur roamed Australia 110 million years ago and was related to the Tyrannosaurus Rex.

Scientists make a surprising discovery about the Red Planet by playing with mud in the laboratory.

A rise in electric-bikes would extend the range of cyclists using them to commute, a study finds.

Increases in rainfall in England could impact ambulance and fire crew response times.

UK scientists aim to build some of the most sophisticated models yet for how rock moves inside the planet.

The Atlas V rocket, carrying the X-37B space plane, launched from Cape Canaveral on Sunday.

Baby orangutans are learning new skills from their human surrogate parents.

Manchester is spearheading a new effort to create space for walking and cycling.

Scientists use the precious element to grade the quality of the natural sweetener.

The UK’s first climate assembly is holding its final sessions this weekend.

Military scientists at Porton Down have shown the BBC the work they are doing investigating coronavirus.

The chick is part of a programme to reintroduce breeding pairs of the birds in the south of England.

As lockdown is eased, we all become participants in a vast, very cautious observational experiment, experts say.

The RSPB says it has been "overrun" by reports of birds of prey being illegally killed.

Substances used for air conditioning in new cars are building up in the environment

Archaeologists say up to 4,000 people may have lived in more than 800 huts perched high on the Tap O' Noth.

The test, now approved in the UK, can tell who has had Covid-19 - but gives no guarantee they are immune.

Researchers say they have developed a lab-grown strain of microalgae which is more tolerant to heat.

Canadian firm GHGSat, which carries out methane monitoring from space, looks to set up a UK hub.

The pandemic could have an impact on conservation efforts for years to come, say conservation experts.

Why the people on the only continent without a recorded case of coronavirus are in lockdown.

Fluttering creatures of the night are also vital pollinators of plants and flowers, say scientists.

Hormone-fed beef and chlorine-washed chicken should remain banned in England. the government is warned.

Doubt is cast on claims fossil fuel companies are curbing their CO2 in line with net zero targets.

The fall in the carbon dioxide emissions is not just due to the country's coronavirus lockdown.

Modern humans began to edge out the Neanderthals in Europe earlier than previously thought.

The billionaire hopes to raise $500m to support his businesses including Virgin Atlantic.

The four-legged robot carries a camera and speaker to play social distancing messages in Singapore.

The submerged mud berth on the River Roach in Essex is recognised as a nationally important site.

"Extreme caution" will be needed when the UK eases lockdown, Grant Shapps says as he announces transport measures.

Funding for English local authorities is likely to be unveiled to encourage people to be more active.

The Hawaii-based Gemini telescope produces a super-sharp picture of the gas giant in the infrared.

Certain habitats can help dampen the spread of ash dieback, which threatens ash trees.