What genetic factor is essential for controlling the ability to walk in animals?

The ability to walk in animals is fundamentally influenced by genetics, as it is primarily determined by the genetic makeup that dictates the development and functioning of the nervous system and musculoskeletal structure necessary for movement. Genetic factors contribute to the formation of muscles, joints, and the central nervous system, which all play crucial roles in locomotion.

Specific genes are involved in muscle development, coordination, and signals that enable voluntary movement. Thus, variations or mutations in these genes can lead to differences in mobility, coordination, and the overall ability to walk. While environmental aspects, nutrition, and socialization can affect an animal's physical health and development, the core genetic foundation is vital in establishing the intrinsic capabilities required for walking. This makes genetics the essential factor in determining walking ability in animals.