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Snakes are a very diverse group of present-day reptiles, with nearly 3,600 known species. They are readily recognized by their long bodies and lack of limbs. The origin of snakes from lizard-like precursors with paired limbs has long been a controversial subject. This reflects the lack of fossils and conflicting results from phylogenetic assessments using molecules and anatomy, respectively. Thus a 2015 report announcing discovery of a 110-million-year-old skeleton of a snake-like rep…