Jean-Luc Coudray (who wrote this book) and Philippe Coudray (who did the drawings) are twin brothers, both cartoonists in their native country of France. They identify with penguins in wanting people to tell them apart. Philippe's Benjamin Bear TOON books have received effusive praise and have twice been nominated for Eisner awards. Both brothers enjoy nature but while Jean-Luc enjoys hiking in central France, the French forests aren't big enough for Philippe: he goes to the North American wilderness every year in search of Bigfoot.