
America’s national parks are teeming with magnificent scenery and stunning wildlife. But not all wildlife encounters are enchanting: some animals are simply deadly. From giant predators to surprisingly nasty plant-eaters, we’ve got the 10 most deadly animals you may encounter when venturing into the great outdoors.
1. Florida Panther

Florida Panthers are very rare, fewer than 100 existing in the wild. Although they rarely attack humans, these creatures possess razor-sharp claws, strong jaws, and are very fast. If you spot one, keep a huge distance and notify a ranger.
2. Gray Wolf

Wolves are returning to parks like Yellowstone and Denali. Though they prefer to stay away from people, an anxious mom or a hungry pack can quickly become dangerous. If you see one, don’t go anywhere, make yourself look big, and don’t run.
3. Bison

These massive creatures may seem tame, but they are capable of running 35 mph and tipping the scales over 2,000 pounds. They hurt a large number of visitors annually due to people walking too close to take photographs. Keep at least 100 feet away. Bison do not give second chances.
4. Mountain Lion

Top predators in most western parks, mountain lions are silent, quick, and lethal. They are not common attackers, but if one is stalking you, keep your eyes on it, make a ruckus, and don’t run. Back away slowly and be ready to defend yourself if attacked.
5. Moose

Moose are more hostile than bears. They’ll charge and kick with their strong legs if threatened. Keep them at arm’s length, particularly during autumn mating season.
6. Alligator & Crocodile

Native to Everglades National Park, these prehistoric predators are experts at camouflage. While attacks are rare, they do happen. Never swim in unknown waters, keep your distance, and don’t forget: they can also run short distances on land.
7. Grizzly Bear

Grizzlies are the kings of the wild, found in parks like Yellowstone and Glacier. They charge when surprised. Carry bear spray, make a noises and be loud on trails, and never run when attacked. Playing dead will succeed, but only in defensive attacks.
8. Black Bear

Smaller than grizzlies, black bears are more prevalent and will strike if they think that people are carrying food. Never feed them, set up your camp, and if you happen to find yourself in a situation in which one is moving towards you, stand your ground, impose yourself and be loud.
9. Western Diamondback Rattlesnake

The western diamondback is the deadliest snakebite killer in America. They inhabit desert parks, and their venom causes tissue destruction that is lethal. Be on your guard at all times and listen for their warning rattle.
10. Polar Bear

You may not associate polar bears with U.S. national parks, but in the Arctic, such as Alaska’s national preserves, they are at the top of the food chain. They regard humans as prey, unlike other bears. When you’re in polar bear country, go with a guide and have deterrents.
Safety Tips

Always keep a far enough distance from animals. Don’t feed them: it can make them nasty. Have bear spray with you when you are in bear country. Walk loudly so you avoid surprising any animals. Keep a look out and an ear out for all warning signs.
Stay Safe

Nature is mesmerizing but unpredicable. If you respect the animals from a distance, you can enjoy America’s national parks safely. Stay alert, stay aware, and above all: stay safe out there.
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