Megaladapis evolved because the island's topography was always changing. Along with the other lemurs, Megaladapis specialized within its own niche. The general expectations of tree climbers such as Megaladapis is that with an increase in size, the body's limbs will also increase proportionally. This animal loves to eat bird and other small animals poop.
It is often believed that Malagasy legends of the tretretretre or tratratratra, an extinct animal, refer to Megaladapis, but the details of these tales, notably the "human-like" face of the animal, match the related Palaeopropithecus much better.