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How did animals survive the asteroid that killed the dinosaurs?Life's Little Mysteries It helped to have a number of features to aid survival following the end-Cretaceous mass extinction.
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How hot is Earth's core?Life's Little Mysteries What's the temperature in Earth's core, and how did we figure that out?
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Why aren't brain transplants possible?Life's Little Mysteries Lining up donor and recipient nerves for a potential brain transplant is one thing. Getting them to communicate is another.
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Can people catch infections from plants?Life's Little Mysteries Catching diseases from plants may not just be the domain of science fiction.
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Are we more closely related to cats or dogs?The answer of whether humans are more closely related to cats or dogs depends on how you look at the question.
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If humans are getting smarter, why are our brains shrinking?Human brains have been shrinking since prehistoric times, some studies suggest. Whether this is true and why it has happened are debated.
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Did Japan have female samurai?Life's Little Mysteries The samurai are renowned as skilled warriors, but were any of them women?
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What's the difference between a lion and a tiger?One has stripes, and one doesn't. But do the differences between lions and tigers go deeper than that?
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Why do cats and dogs shake their heads?Life's Little Mysteries Cats often flick their heads back and forth as if they've been possessed. This strange reflex has a simple explanation.
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