Okay, this one is just for grins. And because the diversity and ingenuity of nature is so inspiring. When I was in the Peruvian Amazon a number of years ago, we took a nighttime walk along a forest path through the jungle. Why? Cuz some species only come out at night. Of the creatures we observed in the glow of our headlamps, the most fascinating and ingenious to me was a net-throwing spider. This small predator weaves a rectangular web that it then grasps with its

Most of us are aware of the rampant killing of American wildlife during the 1800s. This calamity reduced bison from an estimated 25-50...