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Origin of the turtle shell lies in digging
Origin of the turtle shell lies in digging
A turtle's shell protects it from its enemies. It evolved from broadened ribs, which gradually grew together. Together with international colleagues, paleontologists from the University of Zurich now reveal that the early forms of the shell did not actually serve a protective function: The ribs broadened to enable the animal to dig more effectively.
eurekalert.org



