The first new moon of the lunar calendar officially ushered in the new year in many cultures Wednesday, marking the imminent arrival of spring and the first day of the Year of the Snake, which symbolizes good luck, rebirth and regality.

In honor of the Year of the Snake, let’s appreciate the strange anatomy and evolution of these slithery reptiles

This year, Lunar New Year begins today, Wednesday, Jan. 29, and ends Feb. 12. Lunar New Year, also widely regarded as Chinese New Year since the late 19th century when it gained global recognition through Chinese immigrant communities, is a centuries-old tradition rooted in the lunar calendar.