The line between our “civilized” lives and wild, unpredictable nature seems to have gotten a little thinner lately. Nature is great, but it can also be dangerous if we don’t show proper respect.

This show is about awkward encounters with bears, mountain lines, gulls and other wild creatures. We also discuss "killer trees" with best-selling science writer, Mary Roach, author of the new book, "Fuzz: When Nature Breaks the Law".

Mary is widely known for her funny, smart and sometimes gross writing and reporting in a series of books with one-word titles. Previously, we spoke with her about "Grunt", which looks at the surprising science of war. She also wrote "Stiff" about — you guessed it — dead people, "Gulp" on the digestive tract, and "Bonk" where we learn all about sex.