In 2012, Dr. Schwaitzers discovery of the same protein in dinosaurs and modern birds could

In 2012, Dr. Schwaitzers discovery of the same protein in dinosaurs and modern birds could possibly prove

A．dinosaurs might be the probable ancestors of modern birds.

B．soft-tissue material could have come from modern bacteria.

C．fossils should be protected from bacterial contamination.

D．organic molecules of dinosaurs could survive in fossils.

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