We believe the ice sheet was not around all the time. It was only around during cool snaps of the climate.
Our own genomes carry the story of evolution, written in DNA, the language of molecular genetics, and the narrative is unmistakable.
Although each egg cell produced by a woman carries a single X chromosome, the sperm cells produced by a man carry either an X or a Y. This means, in very simple terms, that the sperm cell determines a baby's sex.
From Roger Bacon, the 13th century Franciscan who pioneered the scientific method, to George Lemaitre, the 20th century Belgian priest who first developed a mathematical foundation for the 'Big Bang,' people of faith have played a key role in advancing scientific understanding.
Evolution isn't just a story about where we came from. It's an epic at the center of life itself. Far from robbing our lives of meaning, it instills an appreciation for the beautiful, enduring, and ultimately triumphant fabric of life that covers our planet. Understanding that doesn't demean human life - it enhances it.
Once upon a time, growing up male gave little boys a sense of certainty about the natural order of things. We had short hair, wore pants, and played baseball. Girls had long hair, wore skirts, and, no matter how hard they tried, always threw a baseball just like a girl.
