All of us have an internal clock that regulates our circadian rhythms, including when we sleep and when we are awake. And light is the […]

Not so long ago, a friend texted me from a coffee shop. He said, "I can't believe it. I'm the only one here without a […]

Summer is an ideal time to take a hike, especially if you have the opportunity to explore one of our country’s many state and national […]

Animals renowned for their outstanding night vision include owls, cats, tarsiers (a tiny primate in Southeast Asia) — and even the dung beetle. But humans? […]