Our brains enjoy fear, but only in small, controlled doses.
In between, she almost died in the Arctic.
And why you should probably leave most baby squirrels alone.
A game for birds became an educational one for humans.
What bad headlines call lazy is what early humans called survival.
You can battle a record-breaking blaze even while trying to conserve water.
These gems are rare bits of Earth’s recycling.
Maybe that's why none exist today.
The forecast isn’t looking great, either.
And for other weird reasons, too.
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