In other words, differences in the shape and size of skulls among early humans may not hold as much significance as scientists thought.
Students also inspect the skulls to infer the social structure of hominid groups based on sexual dimorphism in skull features with respect to male/female differences in (a) size of skulls, (b) supraorbital crest, and (c) size of canine teeth.
Although MRI analyses did not reveal statistically significant abnormalities in the shape or size of skulls in Ate1-deficient mice (Fig. 8B, C), the MRI data did not preclude the possibility that bone structure may be perturbed in the absence of Ate1.
brevicauda: n = 167, 43 sites; C. castanea: n = 86, 25 sites; C. perspicillata: n = 160, 44 sites): centroid size for the size of the skull (hereafter referred to as skull size), angle of curvature of the zygomatic arch (hereafter referred to as zygomatic arch), and forearm length (Jarrín-V. et al. 2010).
But you might have mentioned that the chairman of the American Psychological Association task force, which you also cite, agrees with my empirical work, concluding that, with respect to "racial differences in the mean measured sizes of skulls and brains (with East Asians having the largest, followed by whites and then blacks)... there is indeed a small overall trend".
It looks like a delicious Amaretto biscuit but twice the size of your skull.
By the size of the skull, her brain was about the size of a chimpanzee's.
The range in the capacity of the cranial cavity is wide but is not directly proportional to the size of the skull, because there are variations also in the thickness of the bones and in the size of the air pockets, or sinuses.
The other animal, based on the size of its skull, was slightly larger and probably the size of an average house cat, Tomiya says.
The peramorphic development of a large body size in combination with increased complexity and size of the skull and hind limbs is offset by the paedomorphic reduction in the forelimbs and digits.
