In the photo: almost complete skull of human ancestors.

A nearly perfect specimen (provided by Dale Omori, Cleveland Museum of Natural History) 3.8 million years ago, a nearly complete Australopithecus Anamenz skull was unearthed in Ethiopia.

Reconstructed face (photo by Matt Crowe, courtesy of Cleveland Museum of Natural History. John Goocher's facial reconstruction was achieved through the generous donations of Susan and George Klein. This new skull specimen, called "MRD", enables anthropologists to associate a face with relatives of the iconic "Lucy" species.

Ancient river delta

(Photo of Matt Crowe, courtesy of Cleveland) Museum of Natural History. John Gucci's facial reconstruction was achieved through the generous donations of Susan and George Klein. One side is a view of the skull, and the other side is a reconstructed face.

The photo was taken by Dr. Johannes Haile Selassie of the ancient delta. Provided by Cleveland Museum of Natural History. This skull fossil was found in an ancient delta of Godaya Valley in Afar region of Ethiopia. Fossils are buried in the sand.

Amazing discovery (image courtesy of Cleveland Museum of Natural History) Yohannes Haile Selassie, a paleoanthropologist at Cleveland Museum of Natural History, discovered this fossil in February 20 16. Here, Heller Selassie poses with the skull.

Another view (Johannes Heller Selassie, a paleoanthropologist at the Cleveland Museum of Natural History) Another view of Heller Selassie with a skull.

Similar to "Lucy" (photo by Matt Crowe, courtesy of Cleveland Museum of Natural History. John Gucci's facial reconstruction was achieved through the generous donations of Susan and George Klein. The face of Australopithecus afarensis is is very similar to Lucy's face, but there are some key differences.

Subtle differences (photo by Matt Crowe, courtesy of Cleveland Museum of Natural History. John Gulch's facial reconstruction was achieved through generous donations from Susan and George Klein. Primitive man's face is not as thick as Lucy's, but its teeth are bigger than Avalon's. MRD has a prominent jaw, which is different from the relatively flat face of modern apes.

Chimpanzee size (photo taken by Dale Dassen, courtesy of Cleveland Museum of Natural History. ) Ancient humans may be only as big as chimpanzees.

Another view (photo of Dale Omori, provided by Cleveland Museum of Natural History. ) Another fossil picture of an ancient skull.