What is one anatomical difference between Australopithecines and other early hominins, such as Ardi? A. There were no anatomical differences between Ardi and the Australopithecines. B. Ardi had a divergent big toe while the Australopithecines had non-divergent big toes. C. Australopithecines had more facial prognathism than Ardi. D. Australopithecines had larger canines than Ardi.
What is one anatomical difference between Australopithecines and other early hominins, such as Ardi?
| A. |
There were no anatomical differences between Ardi and the Australopithecines. |
|
| B. |
Ardi had a divergent big toe while the Australopithecines had non-divergent big toes. |
|
| C. |
Australopithecines had more facial prognathism than Ardi. |
|
| D. |
Australopithecines had larger canines than Ardi. |
The answer is: B. Ardi had a divergent big toe while the Australopithecines had non-divergent big toes.
One of the key anatomical differences between Ardi and the Australopithecines is the structure of their big toes. Ardi had a divergent big toe, which is more ape-like and allows for better grasping in trees. Australopithecines, on the other hand, had non-divergent big toes, which are more human-like and better suited for walking upright.
This difference in big toe structure suggests that Ardi was more arboreal (tree-dwelling) than the Australopithecines. This is supported by other anatomical features of Ardi, such as its long arms and curved fingers.
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