8 Deadliest Animals In North America

American Alligator

Wilderness & Environmental Medicine reports, “The alligator is one of the few nonvenomous reptiles that can cause serious or fatal injuries in humans” and the most common crocodilian reptile in the U.S.

Mountain Lion

Cougars are solitary and elusive predators that roam over great areas of the American West. They’re effective and versatile predators who use their powerful jaws to deliver fatal jugular bites to elk and deer.

Black Widow Spider

Black widow spiders may be small, but their venomous bite can be fatal to children and elderly people, and they frequently require hospitalization.

Grizzly Bear 

Grizzly bears are large predatory mammals, often symbolizing the wildness of North America, and capable of immense strength and surprising speed.


The Alaska Department of Fish and Game says an adult male moose can weigh as much as 1,600 pounds and be close to 6 feet tall! 

Bull Shark

Bull sharks have high testosterone levels and are fearless and aggressive, making them one of the deadliest sharks.


These dog-like predators quickly adapt to new food sources and often scavenge for food. Though they aren’t typically a threat to people.

Africanized Bee

The Smithsonian Institute reports that these invasive, so-called ‘killer bees’ “are dangerous because they attack intruders in numbers much greater than European Honey Bees.”

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