What form of locomotion is characterized by long forelimbs and the ability to swing from branches?

The correct answer is brachiation, which refers to a specific form of locomotion used by some primates that allows them to swing from branch to branch using their long forelimbs. This mode of transport is highly efficient in arboreal environments, where individuals can navigate the canopy by grasping branches and propelling themselves forward.

Primates that exhibit brachiation typically have adaptations such as elongated arms, flexible shoulder joints, and a highly mobile wrist, enabling them to reach out and grasp branches with ease. These adaptations not only provide stability during movement but also allow for quick and agile travel through the trees.

Understanding brachiation is essential as it highlights the evolutionary adaptations of certain primate species that have made arboreal lifestyles viable. This mode of locomotion emphasizes the relationship between physical traits and environmental demands, showcasing how different species have evolved to maximize their survival and efficiency in their respective habitats.