For some people, the sight of a spider egg sac is incredibly unsettling. They may be tempted to immediately destroy or remove it from the home, assuming that the progeny that emerges will be dangerous ...

If you live in an area with spotted lanternflies, you probably know the drill — stomp and kill these invasive insects at first sight. There are also ways to wipe out lanternflies naturally with a ...

This story appears in the September 2010 issue of National Geographic magazine. We fool ourselves most days. We imagine the Earth to be ours, but it belongs to them. We have barely begun to count ...