Reconstructions indicate that the extinct lemurs did not climb very often and imply that they were much more adept at terrestrial living, more than any other extant strepsirrhhine.

Further studies on their enamel indicate that Archaeolemur also had the ability to exploit resources that may have been indigestible to other species, showing a great plasticity in their dietary tracts as well.

The species was discovered in Madagascar in the year 1899 by a renowned paleontologist by the name of Ludwig Lorenz von Liburnau, who associated the monkey lemurs with apes.

In an article analyzing the dental microwear of the Archaeolemuridae, some important information was discovered through fossilized teeth.

However, the two families’ dental microwear differed at some points, indicating that archaeolemurids had a diet containing a variety of harder foods.

The prior assumption that H. stenognathus ate C3 plants which included large seeds and hard fruits were wrong because those foods were too strong for the animal's teeth.

The large teeth were meant to extract the nutrients from food that needed incisional, but not tough preparation.

The species lived in environments in southern and southwestern Madagascar, where it is thought to have consumed bulbs and corms of grasses and sedges comprising the bulk of its diet.

In addition, Hadropithecus would have spent most, if not all, of its time on the ground, making it readily available for hunting and exploitation by humans.