Elephants can't jump because of their unique body structure. Unlike most mammals, elephants have very stiff, straight legs that are built to support their massive weight. Their bones are more column-like and lack the springy, flexible joints needed for jumping. Additionally, elephants' muscles and tendons aren't designed for the explosive power required to leap off the ground. Instead, they rely on their strength and size to move and navigate, but jumping isn't part of their natural abilities.