These 11 National Parks Are Home To The Most Dangerous Wildlife In America
National Parks are known for their beauty, nature, and wild animals. Many people visit national parks for the wildlife; some have this in abundance!
What people don’t understand is how dangerous these animals really are! Some animals, like bears and cougars, are clearly dangerous. However, there are other animals in our national parks that you need to know about that are just as dangerous.
Let’s explore the US national parks with the most dangerous wildlife and see which national park has the most dangerous wildlife.
1. Yellowstone
This national park stretches across three states (Wyoming, Montana, and Idaho) and is one of the most deadly national parks in the world for wildlife. Since the park was founded in 1872, ten people have died from wild animals.
Eight of the deaths have happened from bears, and two have happened from bison! The giant bison that roam around Yellowstone are not as cute and friendly as people once thought. In fact, bison have injured more people than any other wild animal in the park, with 56 injuries.
However, in the 1960s alone, there were 45 bear attacks in the park until park officials had to step in and ensure that the bears were not eating human food but had a natural diet.
2. Glacier National Park
Yellowstone might be one of the most dangerous national parks in the world, but Glacier National Park is the park with the highest number of deaths at 12!
Even with Yellowstone receiving about 1.5 million more visitors annually, there are still more bear deaths. It’s said that the bear attacks happen because the bears have gotten used to eating human food, thus associating humans with food.
There are still one to two bear “incidents” per year here, but the number of deaths has been much fewer since properly teaching visitors how to store their food and trash.
Another rule that most national parks have put in place is that you must stay at least a quarter mile away from the bears. Any closer than this could cause an attack.
3. Olympic National Park
This national park also has bears, but the more dangerous animal here has recently been the cougar. Just last year, an eight-year-old boy was attacked by a cougar. He escaped with just minor injuries because while the boy was being attacked, his mom was screaming so loud that it scared away the cougar.
There was another death in this national park that a mountain goat caused. It happened in 2010 and was the first death caused by a wild animal in the park. The goat was up on a ridge, and to pass by, a hiker tried shooing it away. It was provoked by this and attacked.
The goat then stood over the hiker and wouldn’t let anyone get near him for over an hour until a park ranger had to kill the goat to get to the body, but by this time, it was too late for the hiker.
4. Everglades National Park
Now, we head to the swamplands of America, where some of the oldest animals on the planet live. In Florida, there have been 442 unprovoked alligator attacks, meaning that an alligator just randomly attacked a person.
I don’t even want to know the number of provoked alligator attacks in Florida. Out of the 442 attacks, 25 of them ended in death.
Some other dangerous animals that live in the Everglades are rattlesnakes, panthers, brown recluse spiders, and black bears. Florida basically has every dangerous animal all in one place, and this is just on land! In the ocean, there are lots more dangerous animals as well.
5. Dry Tortugas National Park
Dry Tortugas National Park is another national park in Florida. This is our first national park known for its dangerous reptiles and mammals—it also has sharks. Florida is the shark attack capital of the world, averaging about 19 “incidents” each year, and Dry Tortugas National Park is no exception.
In 2022, a woman was wading in the water when a six-foot lemon shark suddenly attacked her. The shark clamped down on her foot and wouldn’t let go until she used her other foot to kick it off. Sharks are (for the most part) not dangerous, but in Florida… well, anything can happen.
6. Rocky Mountain National Park
Rocky Mountain National Park has the highest population of cougars in the US. Cougars stalk their prey for miles without their knowledge and then attack when they are the most vulnerable. They do the same with humans. You will not know a cougar is near you until it’s too late. They will appear out of nowhere and attack.
This national park also has bears, lynx, wolves, coyotes, and rattlesnakes. Just be aware that the animals at this national park (and many others) are becoming less and less scared of humans, which makes them more likely to attack.
7. Katmai National Park
This national park has the highest population of brown bears in the US. It’s in Alaska, where many bears go fishing during the summer, which makes it an amazing place to travel to if you are a wildlife photographer or just a person who loves seeing animals in their national habitat.
Brown bears are one of the most dangerous species, but in the history of this national park, there have only been two deaths.
They both happened in 2002 when a man who went by “Grizzly Man” and his girlfriend were attacked and partially eaten by a brown bear. They were bear researchers and were filming for a movie when the attack happened, so the entire thing was recorded. You can hear them off-camera screaming for help with no one around to hear their cries.
8. Grand Canyon National Park
This desert landscape is full of dangerous animals. Some of the most common are scorpions, rattlesnakes, and Gila Monsters. These animals are dangerous and, if provoked, will put you in a world of hurt. However, these are not the most dangerous animals in the park. This award goes to the rock squirrel.
Based on emergency room visits, the most common injury from wild animals at the Grand Canyon is from these crazy little squirrels. Once again, these squirrels are so ferocious because we humans keep feeding them.
They associate humans with food, just like bears do. So, whatever you do, do not feed the squirrels at the Grand Canyon unless you want to end up in the emergency room.
9. Great Smoky Mountains National Park
This is the most visited national park in the world, with 13.3 million visitors per year, more than tripling the number of the next most popular. Even though these numbers are super high, there have only been two animal-related fatalities recorded in the park, and both were by bears.
The latest one was in 2021 when a bear was seen dragging a body across a creek. However, after the autopsy, it turns out the man was most likely already dead from a drug overdose when the bear pulled his body from the tent.
10. Denali National Park
Denali National Park is another Alaskan park with abundant wildlife. Most people who die at this national park do so on Denali, the USA’s tallest mountain at 20,310 feet. However, one death from wildlife at this park has been caused by a bear.
The attack happened in 2012 to a hiking person who stumbled across a bear. Before the bear attacked, the hiker snapped a picture of the bear. This was the last picture he ever took.
Later that day, hikers came across a backpack lying in the middle of the trail and, upon further investigation, pieces of clothing covered in blood. It was then that they saw the bear sitting on the man’s mangled body down by a creek.
11. Death Valley National Park
This national park is known not only for being the hottest place on earth, but also for the many species of poisonous animals that live here, including rattlesnakes, scorpions, and black widow spiders.
Death Valley is one of the most remote places in the US and doesn’t have a lot of cities or towns in the park. That means that if something goes wrong while you’re out there, then you’re stuck. The nearest hospital to Death Valley is over 2 hours away, so if you are stung or bitten, you better drive fast!
