Functional residual capacity (FRC) is the volume of air left in your lungs after a normal, passive exhalation. This test is used to evaluate your lung function, and you may need to have your FRC ...
An image shared to Reddit in October 2024 claimed to show the hoof of a dinosaur found "with fully intact skin." The post had been upvoted more than 49,000 times at the time of this writing.
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