Imagine you have found a skull with an ape-size brain, sagittal crest, very large back teeth, and large cheekbones. Based on this information, this is most likely a specimen of
A) Australopithecus afarensis.
B) a robust australopith.
C) Australopithecus africanus.
D) a modern human.

Question

Quizplus · Accepted Answer

The sagittal crest, large back teeth, and large cheekbones are all characteristics of robust australopiths, such as Australopithecus robustus or Australopithecus boisei. The ape-size brain also fits with this classification. This skull does not match the characteristics of Australopithecus afarensis, which had a smaller sagittal crest and smaller back teeth, or Australopithecus africanus, which had a smaller sagittal crest and more human-like teeth. It is also not a modern human skull, as it has characteristics that are not present in modern humans.

Imagine You Have Found a Skull with an Ape-Size Brain