What distinguishing cranial feature has historically been noted in the Northern White Rhino (*C. s. cottoni*) compared to the Southern subspecies?
Answer
A slightly more elongated skull
Although the physical differences between the Southern White Rhino (*C. s. simum*) and the Northern White Rhino (*C. s. cottoni*) might appear minor to a casual observer, subtle morphological distinctions exist, accumulated over millennia of separate evolution. Specifically, historical analysis of skeletal remains indicates that the Northern White Rhino possessed a skull structure that was slightly more elongated than that of its southern counterpart. While the square lip remains the key adaptation for grazing in both, these subtle skeletal variations represent the endpoint of diverging recent evolutionary paths driven by distinct geographical and environmental pressures.

Related Questions
Which mammals share the order Perissodactyla with the white rhinoceros, *Ceratotherium simum*?What element of the scientific designation *Ceratotherium simum* describes the rhino's distinctive wide muzzle?What key ecological specialization defines the modern *C. simum* compared to its ancestral forms?Which related rhino species is structurally adapted for stripping foliage from bushes, contrasting with the White Rhino's grazing?What demographic context describes the current situation of the Northern White Rhino (*Ceratotherium simum cottoni*)?What was the approximate minimum wild population reached by the Southern White Rhino during its near-extinction event?What physical characteristic reflects the White Rhino's specialization as a grazer, contrasting with ancestral browsers?For approximately how many million years has the mammalian lineage that includes the white rhino persisted on Earth?What significant evolutionary transition does the genus *Ceratotherium* represent in rhino history concerning diet and size?In what specific year did the last known male Northern White Rhino die, leading to the subspecies' functional extinction?What distinguishing cranial feature has historically been noted in the Northern White Rhino (*C. s. cottoni*) compared to the Southern subspecies?What are the three primary defining adaptations contributing to the evolutionary success of the white rhinoceros species over millions of years?