Answer:
In your legs.
Explanation:
Long bones are so-called because they are longer than they are wide. Long bones in the arm include the humerus, radius, ulna, metacarpals, and phalanges. Long bones of the leg include the femur, tibia, fibula, metatarsals, and phalanges. The clavicles (collar bones) are also long bones.
If you talking about animal bones sorry but i don't know.
Hope this helps tho :)