The Surprising Reason Why Pen Caps Have Tiny Holes at the Top
It’s a matter of life and death.
It’s a matter of life and death.
Three hundred water samples from around the lake will be tested.
You're a quick chemistry lesson away from a better brew.
The new study could change the way we think about sleep debt.
Beware of buffets.
Defining it is more complicated than you think.
You'll never hear one the same way again.
The entertainer's much-imitated dance moves pose challenges for neurosurgeons.
The current record may never be broken.
They're at their most adorable when they need us the most.
You don't want to come into contact with even the slightest wisp of it.
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You know you can't always believe your eyes. Turns out you can't always believe your ears either.
The last male northern white rhino died, but the species still has a fighting chance.
There's more to it than the element of surprise.
Crows see death as a learning opportunity.
It can alert residents to the presence of a fire within two seconds, and can prevent the blaze from spreading.
It starts in the brain.
The mysterious sound clip has a perfectly rational and non-demonic explanation.
It's not just your imagination.
Our eyes are itching just looking at it.
Researchers thought the foot-long sea cockroach was "cute."
More black bears are waking up earlier—or not hibernating at all.
Whether they're minor eruptions or cataclysmic explosions like Vesuvius, Tambora, and Krakatau, volcanoes have had a major impact on the world's climate and history.