Discover what separates alligators and crocodiles and how you can tell them apart.
Life's Little Mysteries answers fascinating questions about the world around you and the stuff in it, including wild questions you didn't even know you had.
And check out our "Life's Little Mysteries" podcast, where we answer questions about mysteries big and small — about ancient civilizations; our planet and solar system; the plants and animals that live alongside us; our bodies and how they work; and more. Listen in on Apple podcasts, Spotify and Audioboom.
In the fourth century B.C., a little-known Greek mariner visited the British Isles. When he returned, he wrote a book about his travels, called "On the Ocean," which was read for centuries.
The asteroid that crashed into Earth 66 million years ago unleashed a catastrophic series of events.
It's often assumed that birds are the only animals that sing. But these other divas of the animal kingdom prove otherwise.
Humans are getting better at staving off death our technological and medical advances. But could humans ever become immortal?
About 4.5 billion years ago, the solar system was just a giant, spinning cloud of gas and dust. Today, it's flat. Here's how that happened.