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Do
you know that some of the “snakes” you have seen may not really be snakes? They
may be lizards that have lost their limbs through years of evolution. They look
a lot like snakes --- they slither and have long, slender, cylindrical bodies;
forked tongues and scaly exteriors. But these lizards evolved from four-legged
lizards, the ones you already know, while snakes evolved from four-legged
snakes that you most likely haven’t seen.
