Learn why the researchers discovered the lampreys far from their supposed home.

The three ages of the ancient world — Stone, Bronze, and Iron — encompass the formative years of human history in most ...

Attention deficit hyperactivity disorder, a neurodevelopmental disorder characterized by inattention, hyperactivity, and ...

Healthy teeth are truly priceless ...

Why did the Aztecs sacrifice humans to the gods? Learn more about what this ritual served, along with other purposes.

Questions over tests of AI math abilities suggest we may never know how capable intelligent machines computers can become.

Salt journeys around the planet, leaving its mark at every step — before it's ultimately deposited into the ocean. Here's how ...

Lung cancer screening can save lives, but it isn’t accessible to everyone at risk of developing the disease ...

Step away from the peeler, or you’ll be tossing out a lot of valuable nutrients.

Astronauts can leave things behind unintentionally, but there are also other objects we purposely have sent into space.

Trash collected in a 2019 cleanup that removed 24,000 pounds (10,000 kilograms) of garbage from Mount Everest ...

These marine mammals are known for building unique cultures within their social groups.