Life's Little Mysteries: Science questions, answered
The world can be a pretty mysterious place and we at Live Science love to ask and answer scientific questions about mysteries big and small: about ancient civilizations, our planet and our solar system, the plants and animals that live alongside us, our bodies and how they work, and the technologies that we use every day.
Join us on this exciting voyage of discovery and downright weirdness as we solve … Life's Little Mysteries.
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Latest about Life's Little Mysteries

What is the world's slowest animal?
By Emma Bryce published
What does survival look like for animals who live in the slow lane?

Why do caffeine withdrawal headaches hurt so much?
By Abby Wilson published
It's still largely a mystery why caffeine withdrawal causes headaches, but researchers have a few ideas.

How many moons are in the solar system?
By Harry Baker last updated
The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many more are waiting to be discovered?

What's the difference between a llama and an alpaca?
By Charles Q. Choi published
Llamas are closely related to alpacas, so how can you tell these South American camelids apart?

Why do some people grow 'chemo curls' after cancer treatment?
By Victoria Atkinson published
After chemotherapy, some people get "chemo curls" and other changes to their hair texture and appearance. But why?

What was the first human species?
By Tom Metcalfe published
Modern humans emerged roughly 300,000 years ago, but our genus Homo is much older. So what's the oldest human species on record?

What would space sound like if we could hear it?
By Alice Sun published
In space, no one can hear you scream — here's why.

Can you dream during non-REM sleep?
By Marilyn Perkins published
People report vivid dreams during rapid-eye-movement sleep. But is this sleep stage really the only time we dream?
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