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On a remote fjord in northwest Greenland, traditional Inuit hunting techniques are being used to stick tiny, high-tech satellite tracking devices onto narwhals — a kind of Arctic whale famous for its long, spiral unicorn horn.

Eleven-year-old Marley Dias went on a quest to collect and donate 1,000 books with a black girl as the main character. Spoiler alert: She did really well.

Dogs tune into the tone of human voices. What about goats? To find out, goatologists ran an experiment to see if goats could tell the difference between a happy-sounding human and an angry one.

Large scavengers like vultures and hyenas do an important job in protecting human health. But studies show these creatures are on the decline, allowing for the emergence of disease.

It's the Fourth of July, and to commemorate the holiday, the Up First newsletter asked readers to share what freedom means to them. And, this one secret will give you the perfect summer pasta salad.

Doctors and health researchers are looking to testing rates, case rates – and intuition – to determine when they'll feel comfortable mingling maskless indoors.

When the tribe closed some the roads to Glacier National Park, businesses worried for their future. But it worked, and with one of the nation's highest COVID-19 vaccination rates, they've reopened.

Peruvian health officials face many obstacles as they try to get everyone vaccinated, including those who live in remote and rural areas.

The Centers for Disease Control and Prevention held only two telebriefings in 2021. That lack of transparency has prompted criticism — and a pledge from director Dr. Rochelle Walensky to be more open.

The South African-based scientist who co-discovered the omicron variant of COVID-19 makes an intriguing argument.