Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A skeleton ...

If you look at Roman texts and artworks, you'll see a lot of depictions of gladiators fighting each other or wild animals to entertain the crowd of observers in amphitheaters. But since the Romans ...

Meryl Streep and many others join the voice cast of Pixar's next film, out on March 6, 2026.

Humans aren’t the only animals with hot tempers. In 2016, ecologist Kristen Cecala and a colleague watched black-bellied salamanders (Desmognathus amphileucus) from Appalachian streams lunge at one ...

Authorities suspect that a grossly emaciated dog found in Hialeah with scars and covered in bite marks -- some of which were open wounds that were infected -- was used as bait in dog fighting.