For this variation on the Cartesian quote, I would proffer the following translation: “I am inconspicuous, therefore I am (still alive).” For many animals, camouflage is a matter of life and death. Of course, there are also animals that display a dazzling array of colours and are clearly visible from afar, but these usually have other means of self-defence at their disposal compared to those who must adapt to their surroundings in form and colour to survive.