Octopuses typically have eight limbs that are called arms. Because the limbs have suction cups for its entire length, they are called arms instead of tentacles. Octopus arms can help the sea creatures ...

Discover the top stories from Sept. 26 to Oct. 2, 2026, including an update on the Perseverance Rover's search for life on ...

Learn how four sailors had to survive 18 hours after their boat collided with a sperm whale, and how the rise in these ...

Discover the top stories from Sept. 19 to Sept 25, 2026, including a new cat species discovered in Bolivia and what to know ...

Learn about the underwater volcanic eruption that is disrupting waters near Papua New Guinea, potentially setting the stage for a new island to emerge. A new island could soon pop up in Oceania thanks ...

Learn more about April's full Pink Moon in 2026, how it got the name, and its cultural significance. When eager night sky viewers step outside on the evening of April 1, 2026, they’ll be treated to a ...

Learn how an eruption of the Yellowstone supervolcano would affect North America, and why one isn't likely to happen in the ...

Learn how the longest clinical trial of its kind found people who drank non-nutritive sweetened beverages lost as much wight ...

Learn why September’s full moon returns so soon on Sunday evening, and how to see it beside Saturn.

Learn how mineral crusts, broken bones, and possible rodent tooth marks helped researchers piece together what happened to ...

Learn how H. pylori, HPV, hepatitis B and C, and the virus behind mono can lead to cancer, and how vaccines and treatment can ...

Learn how a newborn's white coat helps relatives keep track of him as he grows into his adult black-and-white coloring.