113: Aardvarks with Guns
Dear Hank & John
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Tuitar, Are They Really Good at Living for a Long Time?
Tuitara is one of the oldest terrestrial vertebrates still around. Their body forms haven't changed much in a hundred, 50 million years. They have this incredibly fast rate of molecular evolution and their cells mutate a lot. John Green's new book, turtles all the way downa hais the last week.
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