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 shark is a meat-eating fish and one of the most feared animals in the sea. There are over 300 types of sharks that live in oceans all over the world. Most of them live in warm seas but some sharks prefer colder regions like the seas around Antarctica. The first sharks lived in our oceans about 300 million years ago.