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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
If you could remove all of your skin, it would weigh up to 5 pounds.
Thyroid conditions may make getting pregnant impossible.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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