Here are five of the most unique and deadly animals in the world. Keep an eye out because you certainly do not ever want to be bitten, stung or even sniffed by one of these critters while out on a wilderness trek! And when SHTF you just never know what you may come across!

Boomslang

The Boomslang is a snake that is primarily found in the South African area, but has been known to make its rounds throughout the African continent. It is one of the deadliest snakes in the world for a couple of reasons.
As you can see from the pic above, the fangs on this guy are big, and this is uncommon among the Boomslang's species. The eyes are also interesting. In fact, they have better eyesight than most snakes. Some say its eyesight is as good as a normal human being.
As most people know, snakes don't typically have the best eyesight. The Boomslang breaks that trend in a major way. They have been known to pick birds right out of the air due to their tremendous sight.
A human has no chance of escaping a bite if the Boomslang chooses to attack them. They usually don't go after humans, but will when threatened. Many of them are green and brown, so they blend in well with the wooded environment in which they thrive.
Boomslangs contain a Hemotoxin venom that, when injected, can kill within hours. A person will literally bleed from the inside out. You will bleed from every hole in the body. You'll even bleed from the ears, eyes, and penis/vagina.
Cone Snail

via YouTube

The Cone Snail is one of those animals that no one thinks about, but it is as deadly as it gets. Usually, one may not even realize they are handling a Cone Snail because the first thing you see is their beautiful shell. The snail underneath is an afterthought, but a deadly one.
Shell collectors end up picking one up and the snail's harpoon will stick into the person. What happens next depends on the Cone Snail. Each one has a different poison. The deadly ones have a Neurotoxin that will temporarily paralyze you. Then your body will start to shut down. You will also develop severe respiratory problems. This could be the worst part of it.
The Cone Snail has something called a Conotoxin.
The way to survive the attack initially, before help arrives, is to make sure you alert someone as quickly as possible by calling 911. You should also make sure that CPR is performed. If CPR is administered, chances are there will be enough time to save the person's life. If not, they risk dying.
Hippopotamus

The Hippo is portrayed in pop culture as a slow, dim-witted animal. They have also been dubbed fun loving and peaceful.
While they are usually peaceful creatures, these 9,000 pound animals are also very territorial. They kill more humans on average each year than all African animals combined. This is a massive statistic when you think about it.
This animal has the potential to kill at any time, and people should take massive notice. The tour guides in the area know the signs of a Hippo that is miffed at them. They will give clues. However, novices won't pick up on them, and those are the people that die.
The best thing to do is watch the Hippo from a safe distance. In doing so, the Hippo won't see you as an issue. The closer you get, the closer you are to death.
Poison Dart Frog

The Poison Dart Frogs are known for their beautiful colors. The Dart Frogs are some of the most beautiful creatures you will ever see, and it's a shame that they are so pretty. People would love to handle them, but should not without proper safety gear.
Dart Frogs have poisonous skin, which can be a big risk. Their secretions are also poisonous. This is how they keep themselves from becoming prey.
The Frog got its name for literal reasons. Tribes have used it to make poison darts/arrows for hundreds of years. It became a household usage, if you will, for tribes in the area.
It's unique in the fact that its skin and secretion is untouchable. However, not all poison dart frogs will kill humans with their poison. Only three are that deadly.
Usually, poison dart frogs won't kill you from a simple touch right away, but you can feel really sick. The poison will mostly cause sickness because it's technically not going into the blood when you touch it, but it is going into the skin.
Your skin acts as a filter between the poison and blood. So obviously some does get in, but not to an extreme level like with an open cut. Some with minor poison won't kill you even if it's shot directly into your bloodstream. But again, you will get quite sick.
Yellow Bellied Sea Snake

The Yellow Bellied Sea Snake is one of the most beautiful snakes in the world. However, it is as lethal as many. What makes this one stand out?
First of all, it's normally found in the sea, which is different from most snakes. It hunts at all times of the day, so you'll find it out and about a lot. They usually never attack humans unless you happen to get too close. Now, the coolest part of this snake is what it packs inside.
The poison is obviously lethal, but the way it can kill you is as horrible a way to go as possible. The venom is similar to that of Cobras, but more concentrated and more toxic. It's said that one drop of their venom can kill three grown men.
The toxin basically attacks your system like all other poisonous snakes' venom does. Yet, there is a twist. It attacks the respiratory system, and you can have an issue with paralysis. Worst of all, the venom attacks all the muscles, too. You can barely move, and you're in a ton of pain, as well. You wish you were dead. This part of it does not kick in for about 30 minutes to an hour, depending on size. However, it's one of the roughest ways to die imaginable. You will end up experiencing the aches and pains even with the antivenom in your system, no matter how quickly you get it in. It's just your body's way of responding to it.
CPR is essential to even be kept alive until you can get the antivenom injected. If you don't, a person can possibly fade out not only from the pain and shock of it all, but from the issues caused with the lungs. CPR also assists the heart, so the added benefit of keeping the heart and lungs active long enough for help to arrive is essential to keeping someone alive.

While most may not run into a Hippo during their wilderness treks it’s still fascinating to discover how deadly they can be – so watch out!

There are other animals to read about like the Blue-Ringed Octopus and a toxic bird called the Hooded Pitohui over on Oddee! Again, it is advisable to make notes and check around to see if any of these animals are common to your local!