You can see it in the logarithmic whorl of a nautilus. The milky iridescence of an abalone. The spiked turret of a queen conch. Precision, elegance, strength. The seashell is a consonance of form and ...
Live Science on MSN
Can a turtle tuck its head all the way inside its shell?
Turtle shells evolved over the course of 300 million years, but self-defense wasn't the initial driver, researchers think.
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