They're the Modern T-Rex, Just with Their Legs

Just like the T-Rex was a fearsome predator with stubby little arms, full grown elephants can reach up to 13 feet tall, and up to 14,000 lbs, which is absolutely massive. But also like the T-Rex, this also plays into an interesting aspect of their anatomy, as all of their bones, unlike other mammals, point downward. What does this mean in the long run? They are the only mammals on the planet that cannot jump. They are incapable of generating enough downward force to jump in the air.