The most dangerous animal in the world is neither shark nor even human (which many would probably offer).
However, how many deaths an animal species causes has less to do with the species themselves than the infectious diseases they spread.
5. Freshwater Snails: More than 20,000 deaths a year
Freshwater snails carry wormholes that infect people with a disease called schistosomiasis. Depending on the site of infection, schistosomiasis can cause acute abdominal pain and blood in the urine or stool.
Millions of people get sick every year; the WHO estimates that 20,000-200,000 deaths per year can be attributed to schistosomiasis.
4. Dogs: 35,000 deaths per year
3. Snakes: 100,000 deaths per year
Since 2015, snake bites have killed more than 100,000 people every year. Worse, there is a worrying shortage in the world of the elemental snake antivenom (which, however, is probably a topic separate for a longer story).
2. People: 437 000 deaths per year
1. Mosquitoes: 750,000 deaths per year
Mosquitoes - double-winged insects that suck blood and carry viruses from person to person - are responsible for the largest number of animal deaths.
Malaria alone accounts for more than half of mosquito-related deaths, mainly in sub-Saharan Africa, but this number is on the decline: according to the WHO, malaria incidence declined by as much as 37% between 2000 and 2015.
Another mosquito-borne infectious disease, Dengue fever, has become the leading cause of hospitalization and death in some Asian and Latin American countries.