Bioapatite in shark centra studied by wide-angle and by small-angle X-ray scattering J. S. Park, J. D. Almer, K. C. James, L. J. Natanson, S. R. Stock ABSTRACT: Members of subclass Elasmobranchii possess cartilage skeletons; the centra of many species are mineralized with a bioapatite, but virtually nothing is known about the mineral’s organization. This
A new species of shark, the Ragged-tooth shark (also known as the Small tooth sand tiger and, scientifically, as Odontaspis ferox), has now been officially added to list of fishes found in Bermuda waters. As often happens, the first encounter with this species was at the end of a fishing line. A commercial fishing vessel,