Leakey, 52, is the granddaughter of Louis and Mary Leakey, who put East Africa on the paleontological map with the discovery of a 1.75 million-year-old human ancestor in Tanzania.

(Louise Leakey via AP) ASSOCIATED PRESS. WASHINGTON (AP) — Muddy footprints left on a Kenyan lakeside suggest two of our early human ancestors were nearby neighbors some 1.5 million years ago.

The footprints were left in the mud by two different species “within a matter of hours, or at most days,” said paleontologist Louise Leakey, co-author of the research published Thursday in the ...

Anthropologists agree that the family of man and the family of apes sprang from a common ancestor. But they have never been able to agree on the time at which man and apes began to take separate ...

The footprints were left in the mud by two different species "within a matter of hours, or at most days," said paleontologist Louise Leakey, co-author of the research published Thursday in the ...

The footprints were left in the mud by two different species “within a matter of hours, or at most days,” said paleontologist Louise Leakey, co-author of the research published Thursday in the ...

The footprints were left in the mud by two different species “within a matter of hours, or at most days,” said paleontologist Louise Leakey, co-author of the research published Thursday in the ...

The footprints were left in the mud by two different species “within a matter of hours, or at most days,” said paleontologist Louise Leakey, co-author of the research published Thursday in the ...

The footprints were left in the mud by two different species “within a matter of hours, or at most days,” said paleontologist Louise Leakey, co-author of the research published Thursday […] ...