Why Don't Woodpeckers Injure Their Brains?
A woodpecker slams its beak into a tree up to 20 times a second — as many as 12,000 times a day. Each strike hits with forces that would concuss a human on the first blow.
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DNA is Impossibly Compact
Inside nearly every cell in your body sits a molecule called DNA, holding the complete instructions for building you.
Solar Eclipses and the Cosmic "Coincidence"
Total solar eclipses along the path of totality are one of the most breathtaking sights in nature.
Ice: The Rulebreaker That Keeps Lakes Alive
Almost every substance on Earth follows the same rule: as it cools, it contracts and gets denser, and its solid form sinks in its own liquid.