In a North American rainforest, that few people even know exists, about a dozen dwindling herds of caribou are struggling to survive.

Caribou Rainforest doesn’t tell an easy story, ask easy questions, or pretend that there are easy solutions to the possible extinction of the last mountain caribou herds found in Canada and the United States. There are fewer than twenty animals left in the last US herd. Yet what Caribou Rainforest does—with photographs, words, and science—is explain why this is happening, so that as a community we don’t repeat our mistakes, even when our intentions are good.