Wolves are common to all parts of the Northern Hemisphere. They are usually shy and cautious around humans but unlike the dog, have not been domesticated at all. The most common type of wolf is the gray wolf, or timber wolf.dult grey wolves are 4 to 6.56 feet (120 to 200centimeters) long and weigh about 40 to 175 pounds (18 to 79 kilograms). Just like its name, the gray wolf typically has thick gray fur, although pure white or all black variations exist. Another common species, the red wolf, is a bit smaller.
As Bill Gates recently pointed out, that killer is the mosquito. No other species, including our own, is responsible for the loss of as many human lives each year as mosquitoes are, Gates continues. Humans murder around 475,000 other people each year. Snakes kill around 50,000, while dogs (mainly from rabies transmission) claim another 25,000 lives.
How many people usually die from the flu each year? The flu kills about 36,000 people a year in the United States, according to the CDC, though the range varies greatly each year. Most deaths are caused by complications from the flu. Children under 2 years old, adults over 65, pregnant women and American Indians are at a greater risk of suffering from flu complications, according to the CDC.