Human evolution is often told as a tidy story of adaptation, yet some of our most familiar body parts still defy ...

An organ is a group of tissues that work together to perform a specific task in the body, such as digesting nutrients or producing chemical messengers that enable brain cells to communicate. Although ...

For decades, 98.6 degrees Fahrenheit has been the widely accepted “normal” average temperature for the human body. But new research adds to the growing body of evidence that humans actually run a bit ...

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Some people may worry about being bitten by a snake or spider, but have you ever considered what would happen if a small ...