Question

What was the functional significance of the lengthening of hind limbs and shortening of forelimbs?

Options

• Increased tree-climbing capacity

• Enhanced swimming ability

• Support for bipedal locomotion

• Improved quadrupedal movement

Answer 1

The lengthening of hind limbs and shortening of forelimbs supported the development of bipedal locomotion. Additionally, freedom of the forelimbs from locomotion, combined with the presence of an opposable thumb, improved the use of hands for holding objects and developing motor skills.