"the Megatherium"
Megatherium
Public DomainMegatherium - Credit: Heinrich Harder

Like the Mylodon, the Megatherium lived until approximately 10,000 years ago. A ground sloth the size of an African bull elephant, it is thought to have been a herbivore, standing on its hind legs to reach leaves.

But the BBC documentary Walking With Beasts claims it was also a scavenger.