Why do almost all mammals have seven cervical vertebrae? Developmental constraints, Hox genes and cancer. J. Exp. Zool. B. (Mol. Dev. Evol.) 285: 19 – 26 .Galis F. Why do almost all mammals have seven cervical
In birds and mammals,bone marrow is the primary site of new blood cell production(or haematopoiesis). It is composed of hematopoietic cells, marrow adipose tissue, and supportive stromal cells. In adult humans, bone marrow is primarily located in the ribs, vertebrae, sternum, and bones of the...
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...
We have to consider the possibility that Matt and I misinterpreted the serial position of BYU 9024. If instead of being C9 it were C14 (the longest cervical inBarosaurus) then the AMNH analogue would be 865 mm rather than 685 mm. That would make it “only” 1.58 times as long as the...