Close-up of a glyph identified as representing a rectangular-shaped hummingbird in profile with a long beak and an extended wing, dated to probably between 300-400 A.D. and found on the floor of the Plaza of the Glyphs at La Ventilla, an extensively-excavated neighborhood in the ancient ruins of Teotihuacan, in San Juan Teotihuacan, northeast of Mexico City, Mexico November 7, 2019. Picture taken November 7, 2019. REUTERS/Gustavo Graf