Why do almost all mammals have seven cervical vertebrae? Developmental constraints, hox genes, and cancer. J. Exp. Zool. (Mol. Dev. Evol.) 285: 19-26.Frietson galis.Why Do Almost All Mammals Have Seven Cervical Vertebrae? Developmental Constraints, Hox Genes, and Cancer. Journal of ...
I recently read a couple of research papers where the researcher used “radiological imaging” to determine the neutral position of the cervical vertebrae. The result was a gently downward curving neck beginning at the pectoral girdle, with the skull only 2 meters off the ground. (I agree with...
A nice simple explanation would be that that all the elements areSupersaurusand that’s just whatSupersaurusis like: super-long neck, forequarters proportionally larger than hindquarters, perhaps in a slightly more convergent-on-brachiosaurs way. That would work just fine were it were not that ...