Ancient Fossil NPR's Richard Harris reports on a new fossil skull, perhaps the most complete ever from a crucial period 3.5 million years ago. It was a period when the pre-human line was branching in several evolutionary directions. A member of the Leakey family found the skull. The Leakeys have been discovering fossils for three generations.

Ancient Fossil

March 21, 200112:00 AM ET

Heard on All Things Considered

Ancient Fossil

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NPR's Richard Harris reports on a new fossil skull, perhaps the most complete ever from a crucial period 3.5 million years ago. It was a period when the pre-human line was branching in several evolutionary directions. A member of the Leakey family found the skull. The Leakeys have been discovering fossils for three generations.