Mosquitos are by far the deadliest creature in the world when it comes to annual human deaths, causing around one million deaths per year, compared to 100,000 deaths from snakes and 250 from lions.
Mosquitoes. Close-up of Mosquito (Aedes aegypti) sucking blood on human skin. The mosquito is the single deadliest, most dangerous animal in the world and also one of the smallest. Mosquitoes are estimated to cause between 750,000 and one million human deaths per year.
The saltwater and Nile crocodiles are responsible for more attacks and more deaths than any other wild predator that attacks humans for food. Each year, hundreds of deadly attacks are attributed to the Nile crocodile within sub-Saharan Africa.
Man's best friend is actually one of the world's deadliest mammals. Worldwide, dogs are responsible for about 25,000 human deaths from rabies each year resulting from maulings and bites.
Hippopotamus (Hippopotamus amphibius)
Causing an estimated 500 deaths annually (as compared to only 22 for lions), hippos are deadly land mammals. This is because they are very aggressive and territorial, and have a habit of charging at boats and capsizing them.
Four species of sharks account for the vast majority of fatal attacks on humans: the bull shark, tiger shark, oceanic whitetip shark and the great white shark.
Lions are extremely accomplished predators and adept hunters. For them, humans count as prey.
Many species, including predators like pumas and bobcats, view humans as an apex predator and lay low when they sense we're around.
The thing that probably stops most predators from killing us, over the course of our evolutionary history, is that we see them before they see us and move or make lots of noise. Predators then have to exert more energy hunting us down and probably fight a whole group of humans.
2. Mosquito. Clocking in at just three millimeters at their smallest, the common mosquito, even tinier than the tsetse fly, ranks as the second most dangerous animal in the world.
Recently, researchers reported that they believe the Spinosaurus may be the largest-ever carnivore in history, and that finding builds on the work of paleontologist Nizar Ibrahim, who in 2014 found the fossils that proved the Spinosaurus hunted its prey in rivers 97 million years ago.
Animals with no natural predators are called apex predators, because they sit at the top (or apex) of the food chain. The list is indefinite, but it includes lions, grizzly bears, crocodiles, giant constrictor snakes, wolves, sharks, electric eels, giant jellyfish, killer whales, polar bears, and arguably, humans.
Are lions afraid of humans? Lions have a healthy fear of humans, especially during the daylight hours and when we are in groups. This fear is based on our persecution of lions for thousands of years for a few reasons.
In fact, gators are naturally scared of humans. When faced with a human in the wild, an alligator is much more likely to fled the area than become aggressive. Now, this does not mean humans should not be cautious around gators. Feeding them will encourage the alligator to interact and will often result in an attack.
Now Valentin Gruener shows that even Lions can be humans best friend if treated correctly. The basic message from both is: Treat animals with respect and do nit threaten them and they will do the same to you. Be aware but not afraid from predators.
Lions have few predators to fear other than humans. A very young or sickly lion might fall prey to hyenas. Cubs may be attacked and eaten by adult male lions. Lions are most threatened by humans who hunt them and encroach on their habitat.
Tigers are typically wary of humans and usually show no preference for human meat. Although humans are relatively easy prey, they are not a desired source of food. Thus, most man-eating tigers are old, infirm, or have missing teeth, and choose human victims out of desperation.
Said to be one of the most dangerous animals in Australia, the Saltwater Crocodile is an aggressive and territorial animal, and is the largest reptile in the world in terms of their mass – known to reach over 1000kg!
Dingoes are Australia's only native canid and play an important role as an apex predator, keeping natural systems in balance.