The imposing hammerhead structure is formed of cartilage rather than bone in the juvenile animal. It can bend to allow the animal to pass through restricted spaces which an inexperienced young hammerhead might enter. As it matures, the structure ossifies, and becomes solid bone. Fighting males will attempt to injure their opponents' eyes with the knobs at the ends of their hammers. The titanothere is highly territorial. Alpha males use their considerable momentum to spread their scent by smashing trees, thus warning other animals (including titanothere bulls) to steer clear.
The titanothere has poor distance vision, but makes up for this with acute hearing and an excellent sense of smell. Although massive, its six limbs allow it to pivot rapidly when it detects a threat from the side or rear. The animal's overlapping body plates and large, boney shoulder and back offer protection during battles with other titanothere or large creatures such as the leonopteryx or thanator.