Mar 26, 2013 — The wilderness is not just a thing, it's a need. It's an idea that has grown up with humans and it will follow us from this planet to the next, and beyond. Commentator Adam Frank plots our future course.
Feb 14, 2013 — Judy Van der Veer poured her experiences of living on a California ranch into books evoking the delights and sorrows of the natural world. On Valentine's Day, commentator Barbara J. King shares her love for Van der Veer's writing.
Feb 3, 2013 — Murderous cats are in the headlines this week. Commentator and cat-rescuer Barbara J. King questions the reliability of the new, extreme cat-killer statistics, which appear in a "meta-study" that she says makes some questionable assumptions.
Aug 22, 2012 — Icelandic scientists have found solid evidence that older men have more random mutations in their sperm cells. They're warning that can cause autism, schizophrenia and a long list of other genetic diseases in their offspring. Their findings are reported in the journal Nature.
Jun 6, 2012 — Can we explain the origin of all things from nothing? First we need to understand what nothing means and how the human mind creates.
May 23, 2012 — Can we distinguish between ultra-advanced aliens and gods? Crazy as it may sound, commentator Marcelo Gleiser says this line of reasoning is sound and blurs the boundary between the natural and the supernatural.
Feb 29, 2012 — You'll feel like you're right there when this woodpecker comes to feed. See if you agree that it's fascinating.
Aug 4, 2011 — Fifty years after it was brought back from extinction, a Southern flower is being taken off the U.S. Fish and Wildlife Service's Threatened and Endangered list. The Tennessee purple coneflower is only the fifth plant to be removed from the list owing to a recovery.
Apr 27, 2011 — Fire ants drown when they are alone in water. To survive floods they need a raft, so they build one with their own bodies.