Transcript for Scientists Uncover Dolphin Fossils That May Provide Hints to Ancient Sea Level Rise
And knowing more about the evolutionary history. River dolphin. Is giving us important information into the circumstances. Under which river dolphins a moment right now we're experiencing geologic change. Human life. Sea levels going to ride this is an example of how the fossil record and there on critical issues part.
This transcript has been automatically generated and may not be 100% accurate.