250 cc, about 3 to 4 times the size of a domestic cat's, which is small for its size when compared to other lemurs. Compared to the size of the skull, the diameter of the orbits protrudes outwards and forwards in a tabular form, suggesting that Megaladapis was diurnal. Based on when molar crown initiation occurred, Megaladapis gestation period is thought to have been at least 198 days, but was likely longer. The island's topography was always changing, and like other lemurs, Megaladapis was specialized within its own niche. The general expectations of tree climbers such as Megaladapis is that with an increase in size, the body's forelimbs will also increase proportionally. Some exterior scratches and incisions were found on both its metatarsus and its mandibula. The cuts on the metatarsus are comparable to those found in caves and are thought to have been produced by humans, while those on the mandibula seem to have been produced by some instrument engineered for cutting – indications that the Megalapadis was at some point in direct contact with the anatomically-modern humans of its time. There are several well-preserved fragments of the upper and lower jaw. The upper molars of Lepilemur are very close in shape to those of Megaladapis. The main difference between the two is that the outer crown-surface of Lepilemur molars forms a nearly straight line, almost parallel with the long axis of the skull, and the outer side is slightly concave inwards. The antero-internal cingulum is missing in the molars of Lepilemur. Details about the anterior parts of the dentition, the canines and incisors, are difficult to determine. The bulle osseve are broken away. The foremost facial portion and base of the skull is also wanting. The total length of the skull of M. madagascariensis has been calculated to be about , about from three to four times that of a domestic cat. Based on the wear on the teeth, the obliteration of most of the sutures of the very thick bones, and the strongly developed crests, it is believed to have been an elderly individual. Cultural references 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. Extinction When humans arrived on Madagascar 2,300 years ago, in addition to the species