This article proposes to rethink the motto of tears of crocodile. This dangerous and cruel saurian, believed incapable of pity, was paradoxically considered sacred by some inhabitants of the Nile Valley or hunted by others. This paper addresses the origin of this motto in the literature and its evolution from the fourth century A.D., under the reed-pen of Asterios the Sophist, a preacher, until the modern era where it is still flourishing, although its trace in the Orient and Occident is lost, during nearly six centuries between the fifth and eleventh centuries. The Egyptian origin of this well-known saying can be deduced from the classics who show how saurians that Tentyrites and Apollinopolites castigated to death, emitted wailing, similar to crying. The motto has evolved through the Physiologos to its final subvertissement: Le Crocodile et l’Esturgeon (1792), a fable of Jean-Pierre Claris de Florian.