Answer the following Q with stream of consciousness. Passage: The femur (/ ˈfiːmər /, pl. femurs or femora / ˈfɛmərə /) or thigh bone, is the most proximal (closest to the hip joint) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles including lizards, and amphibians such as frogs. In vertebrates with four legs such as dogs and horses, the femur is found only in the hindlimbs. The head of the femur articulates with the acetabulum in the pelvic bone forming the hip joint, while the distal part of the femur articulates with the tibia and kneecap forming the knee joint. By most measures the femur is the strongest bone in the body. The femur is also the longest bone in the human body.

Question: Based on this passage, where is the femur located on the human body?
This is the relevant information: The femur (/ ˈfiːmər /, pl. femurs or femora / ˈfɛmərə /) or thigh bone, is the most proximal (closest to the hip joint) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles including lizards, and amphibians such as frogs. Therefore, the final answer is the most proximal ( closest to the hip joint ) bone of the leg.