When it comes to animals, it's best to always keep your guard up. No matter where you are, there could always go to be a potential danger lurking around the corner- so it's good to have some idea of what to look out for.

Whether it is considered a danger because of venom or a "silent killer", here are some of the most dangerous animals you will find throughout the midwest.

Wisconsin- Brown Recluse Spider


This spider is identified as a one-third-inch-long spider that has a violin-shaped marking near its head. It is one of two spiders in Wisconsin that are venomous, the other being the northern black widow, and fortunately is rare.

South Dakota- Puff Adder

The only animal that is able to live with this snake is a toad. It is a highly venomous snake and if it attacks it could lead to fatalities.

When threatened, the snake will puff up their head and if the venom gets into your system, it can cause cell death and organ failure. It's best to just stay away from places these snakes frequent.

Ohio- Whitetail Deer


The whitetail deer is almost a staple of Ohio. It has lived in the state region since the end of the Ice Age and in 1988 the State Assembly voted it Ohio's state mammal. It is also known as the most deadly animal in the state causing more than 20,000 car accidents a year.

North Dakota- Prairie Rattlesnake

Prairie RattleSnake

North Dakota is home to one native venomous rattlesnake-- the prairie rattlesnake. These snakes can be found in the western half of the state and tend to hide in tall grass.


Great Basin Rattlesnake

So turns out that if you are in Nebraska, your chances of being killed by an animal are pretty low. Nebraska ranks 30 out of 50 when it comes to animal-related death.

The one thing you are going to want to look out for in Nebraska is poisonous snakes such as the timber rattlesnake, prairie rattlesnake, copperhead, and Western massasauga rattlesnake.

Missouri-- Osage Copperheads

Osage Copperhead

Missouri is home to many different wildlife habitats- from prairies to Ozark Hills and valleys, to swamps, and marshes. This creates many different types of habitats that the state's 49 different snake species can live in.

In Missouri killing a snake is illegal- even if one bites you, so it's best you stay away if you see one.

Minnesota- Moose

funny awkward moose eating

This animal is just huge and you definitely do NOT want to get on its bad side. Moose come after humans more than wolves or bears. You should tread with caution around them, especially if they are around their calves because the mother is known to attack.

Michigan- Black Bear

American Black Bear

Black bears have the reputation of being big, strong, fearsome animals however it is rare that they attack people, especially when unprovoked. If they do attack, it is probably because it is a mama bear protecting its cubs.

Kansas- Ticks


Ticks are disease-carrying parasites that live in the woods of Kansas. They hold their spot as the most dangerous in the state due to these diseases,

Iowa- Mosquito

Aedes aegypti Mosquito

Just like ticks, mosquito holds their place as the most dangerous animal in Iowa because they carry diseases that lead to more deaths and illnesses than venomous spiders and snakes combined.

Indiana- Deer

Deer on the edge of the road just before vehicle

Indiana is not home to many dangerous animals. Deer in the state account for many road accidents making them one of the most dangerous in the state.

Illinois- Striped Bark Scorpion

This is the most common scorpion in the US. Coming in at 2.75 inches, the striped bark scorpion's sting is very painful and can be dangerous- especially if you're allergic to the venom.

Iowa’s Top 10 Most Common Snakes


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