(CNN) — Each year, a tiny species in Australia makes a grueling 620-mile (1,000-kilometer) nighttime migration, and it’s pulling off the feat in a way only humans and migratory birds have been known ...

Browntail moth caterpillars on oak leaves at Wolfe's Neck Woods State Park in Freeport, Maine. Every other Friday, the Outside/In team here at NHPR answers listener questions about the natural world.

Caterpillars are the most common garden insects. Some are completely harmless, while others can damage crops or deliver painful stings. While you can safely leave most caterpillars alone, some will ...