Sharks, members of the group of organisms referred to as
elasmobranchs, are remarkable creatures. Their origins
predate most multicellular organisms on the planet
today. One of the most remarkable features among some
members of the genus is their incredible size given a
closed circulatory system. This circulatory system
limits the size of organisms adhering to it, but
elasmobranchs have evolved means of circumventing these
obstacles; those being the possession of a rigid
pericardium and a conus arteriosis. This page aims to
explore some of the physics behind the physiology of
these unique evolutionary features.
