Who are the Mahars and what makes them the dominant species of Pellucidar?

The Mahars are the dominant race of Pellucidar, described as great reptiles, six or eight feet in length, with long narrow heads, large round eyes, and beak-like mouths lined with sharp, white fangs^[1][1]. Their huge, lizard bodies are serrated with bony ridges, and they possess three webbed toes on their feet, along with membranous wings attached to their fore feet^[1][1]. They have no ears or spoken language, communicating among themselves through a 'sixth sense' cognizant of a 'fourth dimension'^[1][1].

The Mahars are the dominant species because they are considered the 'heads' or 'brains' of the inner world^[1]. Their advanced scientific progress, particularly in biology and eugenics, led to the discovery of a method to chemically fertilize eggs after they were laid, eliminating the need for males and resulting in a race consisting exclusively of females^{[1][1][1][1][1][1]}. This scientific advantage, possibly combined with their sixth sense, gave them superiority over other creatures^[1].