Ahead of the biggest day in birding, we take an inside look at the Cornell Lab of Ornithology, home to millions of audio clips of birds from around the world.

Families with rare gene mutations that cause Alzheimer's in middle age are giving scientists a unique window on the disease, and a quick way to test potential treatments.

The Devils hole pupfish lives in just one spot in Death Valley. Wildlife officials have managed this iconic fish for decades, and last spring, just as the Trump administration was laying off all kinds of scientists, the wild population of this fish plummeted to only 20 individuals. Officials then took an irrevocable step.

Across six locations in Indonesia, NPR spoke with locals about how nickel mining is changing the land and daily life. It's brought jobs, but also concerns about environmental damage and public health.

This year's winner in NPR's College Podcast Challenge is a letter to a grandparent that grapples with health issues including dementia. It's the story of a family learning to talk about hard things.

When beekeepers saw honeybee die-offs last year, experts at a USDA research center stepped in to help. The Trump administration plans to close the facility, and beekeepers and scientists are worried.

Pollinators have economic and health benefits, but those benefits have been difficult to quantify. A new study puts some numbers to how important pollinators are for both nutrition and income.

The U.S. military has guided a couple of American-flagged ships through the Strait of Hormuz on Monday. But a few weeks ago, another sort of vessel sailed right into the channel. It stayed put for hours, and biologists found something surprising.

The Stillaguamish Tribe in Washington state has been buying land in its traditional territory and removing levees. The goal is to turn farmland into wetlands with the hopes of restoring Chinook salmon.

Timmy captured the hearts of whale lovers across the globe who rooted for a happy ending for the humpback.