The coat of arms recalls the founding of Mexico City, then called Tenochtitlan. The legend of Tenochtitlan as shown in the original Mexica codices, paintings, and post-Cortesian codices, does not include a snake. While the Fejérváry-Mayer codex depicts an eagle attacking a snake, other Mexica illustrations, such as the Codex Mendoza, show only an eagle; in the text of the Ramírez Codex, however, Huitzilopochtli asked the Tenochtitlan people to look for an eagle devouring a snake, perched on a prickly pear cactus. In the text by Chimalpahin Cuauhtlehuanitzin, the eagle is devouring something, but it is not mentioned what it is. Still other versions (such as the backside of the Teocalli of the Sacred War) show the eagle clutching the Aztec symbol of war, the Atl-Tlachinolli glyph, or "burning water". Source: https://en.wikipedia.org/wiki/Coat_of_arms_of_MexicoThanks for the original asset creator : SBCVL_UCSF
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