Marty’s photo of the day #3552: I took this photo from my favorite campsite ever. Deb and I were in the Yukon Territory, traveling for the Canada chapter of my first book, Cool Creatures, Hot Planet: Exploring the Seven Continents. After we snuggled into our tent with our dogs, a wolf started howling next to our tent, while others—high on the mountainside—answered. Our dogs were on alert, but stayed quiet. It was an amazing experience, listening to the chorus of howls, which continued sporadically throughout the night.