The current evidence indicates that hominids were bipedal by when?
a. 4.5 million years ago
b. 5 to 7 million years ago
c. 8 to 10 million years ago
d. 3 to 4 million years ago
Answer: B
The current evidence indicates that hominids were bipedal by when?
a. 4.5 million years ago
b. 5 to 7 million years ago
c. 8 to 10 million years ago
d. 3 to 4 million years ago