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.
The increased deaths aren't necessarily because the strain of flu virus is stronger, but rather because so many more people get sick during a pandemic, such as: 1  1889 Russian Flu Pandemic: About 1 million flu deaths. 2  1918 Spanish Flu Pandemic: Over 40 to 50 million flu deaths, including about 675,000 in the United States. The flu infected over half of the world's population by the end of the pandemic. 1957 Asian Flu Pandemic: Over 1 million flu deaths, including about 69,800 in the United States