Marty’s photo of the day #2909: While working on my first book, Cool Creatures, Hot Planet: Exploring the Seven Continents, Deb and I were only the third outsiders to backpack with the Iban (a reformed headhunting tribe) across a special section of Borneo’s rainforest. You can read about our adventure in my book, so I won’t say anything about it here other than to say we saw some amazing creatures. This is a close-up of a spiny walking stick that we found during one of our night hikes.