The Sloth the Size of an Elephant 🦥🐘 If you think sloths are just small, sleepy creatures that hang from branches, meet their giant ancestor. This is the Megatherium (Giant Ground Sloth). Massive Size: These guys were absolute titans. They could grow up to 20 feet (6 meters) long and weigh as much as an African Bull Elephant (around 4 tons!). Standing Tall: As you can see in the video, they could stand up on their hind legs to reach high branches that other herbivores couldn't touch. When stan