Based on fossil evidence, which feature is thought to have evolved first in hominin evolution, bipedalism or large brains?
A) Bipedalism.
B) Large brains.
C) Both evolved at the same time.
D) This answer cannot be obtained from currently available data.

Question

Quizplus · Accepted Answer

Fossil evidence suggests that hominins evolved bipedalism before developing larger brains. This is supported by the discovery of early hominin fossils, such as Sahelanthropus tchadensis and Orrorin tugenensis, which had adaptations for bipedalism but had relatively small brains.

Based on Fossil Evidence, Which Feature Is Thought to Have