In 2003,scientists announced the 1997 discovery in an Ethiopian valley of three anatomically modern skulls-two adults and a child.Known collectively as the Herto skulls,they were dated by researchers to 154,000-160,000 B.P.All of the following clues suggested these skulls were in fact of anatomically modern humans,EXCEPT
A)their long and broad midfaces.
B)their tall and narrow sagittal crests.
C)their high cranial vaults,falling within modern dimensions.
D)their tall and narrow nasal bones.
E)evidence of the skulls' cutting and handling,suggesting they had been detached from their bodies and used-perhaps ritually-after death.

Question

Quizplus · Accepted Answer

The tall and narrow sagittal crests are not characteristics of anatomically modern humans, which suggests that the Herto skulls may have belonged to a different hominin species. The other characteristics listed are consistent with anatomically modern humans.

In 2003,scientists Announced the 1997 Discovery in an Ethiopian Valley