International Union for Conservation of Nature

A Quarter of Freshwater Fish Are at Risk of Extinction, a New Assessment Finds

A global update from the leading authority on the status of species shows that climate change is compounding other threats to plants and animals.

Monarch Butterflies Are Placed on IUCN Red List

The International Union for Conservation of Nature has placed the insects on its Red List. But scientists say the public can give them a boost.

Biodiversity Crisis Affects Billions Who Rely on Wild Species, Researchers Say

The latest global assessment of the decline in plant and animal life found some bright spots but recommended significant changes to hunting and other practices to address the risks.

20 Percent of Reptiles Risk Extinction, From King Cobras to Geckos

The first global analysis of its kind found that logging and farming are taking away reptile habitat at an unsustainable pace, exacerbating a worldwide decline in biodiversity.