|Animal||Number of human deaths per year|
The list of the deadliest animals for humans in the world turns its neck to prejudices and popular beliefs due to the historical bad reputation that certain animal species ( sharks , snakes , bears , crocodiles , lions , piranhas ) suffer from while others kill people to defend their territory ( dogs , ostriches , hippos , hymenoptera ), by self-defense ( elephants , buffaloes , bison), by accident (collision between a car and large mammals ) or by trophic behavior ( parasites developing at the expense of another organism), but have the usurped reputation of being less dangerous [ 1 ] . Thus, out of about 3,000 known mosquito species, less than a hundred, known as anopheles , transmit malaria but were responsible, in the 1990s, from 400 to 900 million cases of fevers, and between 700,000 and 2.7 million deaths per year [ 2 ] . The diseases these insects affect several hundred million people per year ( Aedes mosquitoes , vectors of deadly infectious diseases such as chikungunya , dengue , yellow fever , Zika virus infection , Culex mosquitoes responsible for Japanese encephalitis and fever. West Nile ), disabling and killing especially the most vulnerable (children, pregnant women, the elderly), which makes these animals the most deadly for humans .