The most common symptoms of mono are a high fever, a severe sore throat, swollen lymph nodes (sometimes called swollen glands) and tonsils, and weakness and fatigue. Symptoms usually start 4 to 6 weeks after you are exposed to the virus. Mono can cause the spleen to swell.
The death roll performs a number of functions for the Saltwater Crocodile. When it grabs very large prey the crocodile has to drag it into the water and drown it so the crocodile will use it's advantage in the water and it's own body weight to roll over and over again to drown it's prey.
A crocodile will eat almost anything that moves. Hatchlings and young crocodiles eat small fish, snails, crustaceans, and insects. Adults feed mostly at night on fish, crabs, turtles, snakes, and small mammals. The growth rate of crocodiles varies with food availability and temperature. Digestion is efficient only within a certain range of body temperatures.