Here are some candidates for the weirdest sea creatures, from sea slugs that photosynthesize to squid with elbows.
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.
Architects have been trying to fix the Leaning Tower of Pisa for hundreds of years. So, will it ever fall over?
Is it really that bad to give a dog a bite of a chocolate bar? Live Science investigates just how much chocolate is lethal to dogs.
In 1958, an earthquake in Alaska triggered the largest wave ever recorded on Earth, which reached a maximum height greater than the Empire State Building.
Lightning is one of the greatest natural forces on our planet. New mapping tools are revealing just how big it is.
Many people give up meat for ethical, health or environmental reasons. But is it OK to put a cat or a dog on a vegetarian or vegan diet?
What cities, states and countries are most at risk from rising sea levels? What can they do to protect themselves?
Here's why NASA has different radiation limits for male and female astronauts, and how these limits may change in the near future.
Polar bears evolved during a time when the North and South poles were not connected by ice or land, so they stayed at the North Pole.
The Mandela effect is when many people believe that something happened when, in reality, it never did.
The oldest known burning fire in the world was likely ignited by lightning at least 5,500 years ago in Australia.