BBC

The purple emperor, the second largest butterfly in the UK, is "officially" back.

The rare feature exists inside the crater of the Mount Michael stratovolcano in the South Atlantic.

The US is the world's top producer of waste per head of population, and one of the worst at recycling.

A wildlife group says the future of bird of prey chicks is at risk after one parent is shot.

A US photographer captures a black skimmer bird feeding its chick a cigarette filter in Florida.

A panel of Antarctic experts stresses the importance of keeping global temperature rise below 1.5C.

The record heat experienced across Europe last week was made much more likely by rising temperatures say researchers.

Skywatchers in parts of Chile and Argentina will shortly see the Moon pass directly in front of the Sun.

Satellite images show a sharp increase in clearances of trees in the first half of this year.

A new species of bee fly discovered in Western Australia is named after the Game of Thrones villain.

The naturalist takes to the Pyramid Stage to thank festival-goers shortly before Kylie Minogue's performance.

Hunters could be back in Japanese waters from 1 July, ending a three-decade halt to commercial whaling.

As the continent bakes in sweltering temperatures, experts explain what's happening - and why now.

Nasa will fly a $1bn drone helicopter on Saturn's moon, Titan, in the 2030s.

Citizen scientists have provided a wealth of new data on an insect that makes blobs of spittle on plants.

The sand dunes where Donald Trump built his golf resort are to lose their special environmental status.

The deserts in China are constantly spreading due to human activities.

Delegates agree a "compromise" on a key report but some say it's a surrender to fossil fuel producers.

Delegates are concerned that some countries are trying to minimise a key scientific report about climate change

Jeremy Hunt and Boris Johnson are urged to make a pledge to put scientific research at the heart of their economic policy.