The term was then exported with Prussian officers and nobles to Russia. The Feldsher system of rural primary care provided some of the inspiration for China's barefoot doctors. Today feldshers can be found in every medical setting from primary to intensive care. They are often the first point of contact with health professionals for people in rural areas.
1 The prospect of a food chain minus its apex predators may mean the end of the line for many more species. 2  Sharks have widespread global distribution, are highly migratory and play a vital role in maintaining the health of ocean ecosystems.
The anal fin on the underside of the shark serves the same purpose. It is often said that the anatomy of an airplane is very similar to that of a shark. When you visualize this in your mind you can see it is very true. There is a tail and the wings to help balance everything and to give it speed.