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Two Scientists Question Theory Snakes Originated At Sea WASHINGTON (AFP) - Two scientists have called into question the theory that snakes originated in the sea. The study by Eitan Tchernov of Jerusalem and Olivier Rieppel of the Field Museum in Chicago is based on comparative analysis of two fossils of two-legged snakes discovered in 95-million-year-old deposits near Jerusalem, Science magazine reported. Both reptiles were of an advanced variety similar to boas and pythons, according to the scientists. They said the skull structure of the fossilized reptiles suggested they had a highly mobile jaw, allowing them to swallow prey larger than their own head. Modern snakes have similar capabilities. However, there is still no definitive answer to the question about the purpose of the ancient serpents' legs, according to the study. "Since our fossil record of snakes is very poor, we can't exclude the possibility that limbs in snakes were lost not just once in the beginning, but several times throughout their history," suggested Rieppel. The researchers also noted that pythons have rudimentary back limbs used during mating or occasional fighting, which ancient snakes may have used for the same purpose. 
Newswires |
