Steven Manchester didn't set out to discover Central America's oldest known Marine Mammal. He was hoping to find fossil plants. About 19-21 million years old, this dugong is the Oldest Marine Mammal found in Central America and the first from the Pacific side of the Panama Canal. Here, the skull is seen from the side with the snout pointing to the right [Credit: Jeff Gage, Florida Museum]Manchester, curator of paleobotany at the...

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