A Brush with the Bear

In the part of your mind that is still animal, still wild, you remember fight or flight; the possibility of paws holding you down, and the hinge of jaws upon you. The thought no longer goes through our minds the way it must have long ago. Sometimes, though, the memory returns. I was considering such a scenario years […]

Redux: Go Occupy Those Forlorn Chairs

This post first ran on July 16, 2015, but it’s good advice for any summer day. It’s summer, and I’ve been thinking of what poet Billy Collins called those, “forlorn chairs/though at one time it must have seemed/a good place to stop and do nothing for a while.” Even situated, as they usually are, to […]

The Mathematical Elegance of the Grand Canyon

  I leave today for a backpack with my two kids off the North Rim of the Grand Canyon. Per our usual, we are going without maps, compass, gps, or a trail. This is how we do it together, traveling by line of sight, letting geography show us the way out and back. I used […]

Counting Pistachios, Taxis and Great White Sharks

In this month’s issue of National Geographic, I lay out a simple question. How many great white sharks are there on Earth? It seems simple enough – we’ve found some 3,500 planets outside our solar system and 400,000 species of beetles on Earth. This is the modern world of crowdsourcing and big data. We can […]

Milkweed In Summer

Back in April, somebody at the community garden got ambitious. Weeds usually grow pretty profusely around the edges of the garden. But on one Thursday in April, when I walked by on my way to work, the weeds in the corner I pass every day had been completely turned over, in preparation for vegetables. I […]

The Map Box

I keep a wooden box on my bedside table. It’s cheap – an old Yalumba Wine case that I found on a curb somewhere, with a hinged lid and a shred of price tag still attached. Usually, it’s stacked high with magazines half read, a thing seldom opened and often dusty. But in all of […]

This is what it sounds (looks) like

I’m a recent convert to Instagram as my main form of social media. After spending a lot of the day reading and writing, listening and talking, sometimes I just can’t take any more words. Facebook sometimes seems too complicated, Twitter too fast—but looking at images feels restful. I’ll follow most anything—photos of kids, vacation scenery, […]

Damage Patterns

The other night I was in the midst of writing about the Ice Age when I strayed to the internet. Up came the Pulitzer Prize for breaking news photography that went this year to New York Times photographers Mauricio Lima, Sergey Ponomarev, Tyler Hicks and Daniel Etter for their coverage of the European refugee crises. Fresh from writing a […]