 Knowledge of the chameleon is acquired by careful observation of its physical features over time. Scudéry is especially attentive to the eyes of the chameleon, which pivot in a much wider range than that possible for human eyes. Experiments with different types of food gradually reveal the chameleon’s eating habits. Careful observation in different environments and lightings cannot resolve the question of the precise causes of the chameleon’s changes of color but does yield surprising evidence that changes in temperature appear to effect substantial alterations in coloration. Months-long observation leads Scudéry to the conclusion that classification of the chameleon as a reptile is mistaken: 