BBC News

Volunteers are urged to make a weekly record of the Tawny owl's distinctive hoot, as numbers fall.

Orcas are in deep trouble because of persistent chemical pollution in the environment, researchers say.

Traditional remedies used by gardeners to deter slugs and snails appear to have no scientific merit.

Chemical pollution threatens the long-term viability of the most exposed orca groups.

HS2 is going to be built through these bats' habitat.

Japan has released new images from the robot rovers it has deployed to the surface of an asteroid.

It connects 17 national parks and runs for 2,800km (1,740 miles) through sparsely populated land.

The profile of Arctic shrubs and grasses is changing as temperatures rise in the far north.

Businesses in India may have found a way to turn plastic rubbish into a golden business opportunity.

Bombs dropped in World War II were so strong they were felt in the Earth's upper atmosphere

Concerns over CO2 emissions as development restarts at hundreds of coal-fired power stations in China.

An expert urges more research to confirm a possible link between fruit, veg, nuts and grains and mood.

Europe's workhorse rocket racks up its 100th launch as it battles stiff American competition.

An increasing number of people are choosing the plant-based diet.

The wreckage of a boat that sank 400 years ago is found to contain currency used in the slave trade.

Climate change is killing Antarctic's mosses, hardy plants growing at the bottom of the planet for centuries.

There are many myths and misunderstandings about evolution - how much do you know?

India has big solar ambitions, but could recent policy uncertainties cast a shadow on its plans?

Researchers have used gene editing to completely eliminate populations of mosquitoes in the lab.

The rare copperhead was discovered in a garden in Virginia and is unlikely to survive in the wild.

See what life is like as a medical photographer at a city hospital.

Pictures have emerged from the surface of an asteroid after Japan landed two robotic rovers on it.

A box of archives reveals the story of a pioneering 19th century gardener who blazed a trail for women.

Frank and Veronica Tett have been nursing hedgehogs back to health for the last 30 years.

Erik Solheim is criticised for risking the UN's reputation by extensive use of expensive air travel.

A rare gulper eel is caught on camera displaying its huge pouch-like mouth in Hawaii.

England is recycling more plastic than ever - but for this trend to continue, the system needs to change

Scientists have identified the earliest known animal in the geological record.

After spending decades exploring the deep sea, Phil Nuytten plans to build a colony there.

Pandas have to be within 20 metres of each other to identify each other's calls in their bamboo forest home.

If successful, the Japanese mission would be the first rover landing on the surface of an asteroid.

It may help stop the animal's rapid and destructive march across Australia, researchers say.

A British satellite successfully deploys a net in orbit to demonstrate how to capture space debris.

Both are as ecologically useful, say scientists, and the same effort must be made to protect them.

It's part of a plan to clean up the millions of pieces of rubbish floating in Earth's orbit.

There are fears for the welfare of 11 tiny piglets stolen from a farm in London.

The first private passenger to fly around the Moon with SpaceX will be a Japanese billionaire.

UK engineers finish building a satellite that will carry cameras closer to the Sun than ever before.

The all-British NovaSAR spacecraft will monitor big stretches of ocean for suspicious shipping activity.

ICESat-2 will use laser beams to measure ice levels on Earth as it orbits 500km above the planet.

Researchers believe they have found the world's oldest brewery in a prehistoric cave in Israel.

The US space agency launches a laser into orbit to assess the impact of climate change on the poles.

A wildlife trust is warning the species could become extinct in Hampshire.

The iconic cactus plant is veering into trouble say researchers.

Scientists say that high-yield farming may be the best way to meet demand for food while conserving biodiversity.

Twenty-seven leading cities see their greenhouse gas emissions peak and decline over the past five years.

The electric cars with stored power that could be transferred to a dwelling.

It's a scream: Riding on some types of roller-coaster is an effective way of removing kidney stones.

New study: Ingesting even a single piece of plastic exposes sea turtles to a 20% chance of death.

Retired sprinter Usain Bolt took part in a zero gravity race as part of a champagne promotion.