Late Effects of Polio: The Medical. A. Polio: The Disease. Poliomyelitis (polio) is a viral illness that begins suddenly with flu-like symptoms of fever, headache, vomiting and/or diarrhea, muscle aching and feeling poorly.. The virus enters the body through the stomach and intestines.
Most crocodiles can sprint at a maximum speed of 6 to 7 miles per hour. The fastest crocodile on record was clocked at 11 miles per hour, during a full gallop. By contrast, top human race-walkers reach speeds of 8 miles per hour without breaking into a full run. Continue Reading.
Speed[edit] Nile crocodile, getting its teeth cleaned by a bird (plover). 1  Crocodiles are very fast over short distances, even out of water.  The land speed record for a crocodile is 17 kilometres per hour (10.6 mph), by a galloping Australian freshwater crocodile.