Most of us have undergone some type of screening exam in the last several years. Depending on your age, personal history, and family history, you may have needed to go for a periodic mammography, colonoscopy, or cardiac stress test. If everything was fine, you have probably been instructed to follow-up

Many people - adults and children - are familiar with the marvelous animated feature "The Lion King". Most have found themselves humming the film's theme "The Circle of Life" long after they've stopped actively thinking about the film itself. "The Circle of Life" is not only a terrifically catchy tune,

What animates us? In other words, what is it that causes us to be living matter? For example, what distinguishes a living orchid from a tissue-paper-and-paint model of an orchid? Or what distinguishes a hawk from an airplane? What is it that causes the material that is us to hold together and function