The extreme heat smothering Europe has upended Climate Week in London.

© Pool photo by Yui Mok

The government is teaming up with Colossal Biosciences, a private company that claims to have revived extinct dire wolves, to store samples from at-risk animals and plants.

© Lenny Ignelzi/Associated Press

New research has identified areas around the world where cooler currents and other favorable conditions are helping to protect coral from the worst effects of global warming.

New research has identified areas around the world where cooler currents and other favorable conditions are helping to protect coral from the worst effects of global warming.

More than 5 percent of the species is estimated to have been lost when a climate-fueled storm unleashed torrents of water, mud and debris.

More than 5 percent of the species is estimated to have been lost when a climate-fueled storm unleashed torrents of water, mud and debris.

Once widespread in Japan, the colorful birds went from being fairly commonplace in the country to being on the verge of extinction.

Fewer than 100 Rice’s whales remain on Earth. Researchers say sonic blasts from oil exploration are a top threat to the species. See and hear why.

Innovative systems to keep ships from hitting North Atlantic right whales are coming into use. The Trump administration is weighing whether they can replace a bedrock protection.

Innovative systems to keep ships from hitting North Atlantic right whales are coming into use. The Trump administration is weighing whether they can replace a bedrock protection.

© Sophie Park for The New York Times

The Sacramento Mountains checkerspot butterfly hasn’t been seen in the wild since 2022. The caterpillar was the last individual in human care.

© Diana Cervantes for The New York Times

The finding effectively paves the way for continued use of atrazine, a widely used herbicide that has been linked to birth defects and cancer in humans.

© Julie Ingwersen/Reuters