It is characterized by the presence of physical abnormalities like growth retardation, intellectual disability, and craniofacial defects.

它以身体和神经发育为特征，包括生长迟缓、智力缺陷与颅面部形。

Biological Anthropologist Clark Spencer Larson says that agriculture instigated a fundamental change in human craniofacial growth and development.

生类学家 Clark Spencer Larson 说，农业类颅面的生长发育发生了根本的改变。

He says such culinary adaptations resulted in fundamental changes in craniofacial growth and development, resulting in reduced robustness, increased malocclusion and increased tooth crowding.

他指出，此类厨房工具的应用给类颅面的生长发育带来了根本上的改变，这就导致了类更加瘦弱，牙齿错位几率增加，牙腔变得拥挤。