The dangerous shark is just as rare as the nonaggressive shark. Obviously there are species which - simply due to their size - should only be approached with great caution, for body size is a problem when it comes to dealing with sharks.
A fever is a rise in body temperature. It's usually a sign of infection. The fever itself is generally harmless and probably helpful. Fevers usually don't need treatment. The average body temperature is 98.6 F (37 C).But normal body temperature can range between 97 (36.1) and 99 (37.2) or more.Your body temperature can vary depending on how active you are or the time of day. Generally, older people have lower body temperatures than younger people.evers usually don't need treatment. The average body temperature is 98.6 F (37 C). But normal body temperature can range between 97 (36.1) and 99 (37.2) or more. Your body temperature can vary depending on how active you are or the time of day.
Fever is one of the body's most effective ways of fighting infection. The average body temperature is 98.6Â° F (37Â°C). But normal body temperature varies from person to person. It also changes during the day, rising a bit after you eat or exercise. Body temperature is often higher in the afternoon than it is when you wake up in the morning. Fever means a body temperature of 100.4Â° F (38Â°C) or higher. An infection is the most common cause of fever. Examples include the flu, pneumonia, food poisoning, and bladder infection. Other conditions can also cause a fever.