Weird Nature

The 11 Most Poisonous Animals In The World Ranked By How Quickly They Kill You  

Aaron Edwards
415.2k views 11 items

When taking a relaxing walk on the beach, the last thing you want to step on is an animal that will kill you within minutes. But the most poisonous animals in the world might do just that. Whether they live in land or sea, a handful of creatures around the world (mostly in Australia) can take your life incredibly quickly. From fish to snakes, there's always something that will take you out just minutes after you realize there's something there at all. How fast can animal poison kill? That depends. Whether you can survive poisonous animal attacks depends on how quickly you get care. 

You might be wondering what the common symptoms are when you get stung or bitten by one of these creatures. It usually starts with numbness, then muscle paralysis, eventually followed by either respiratory failure or cardiac arrest. How long that takes depends on the creature, but depending on your luck it could take as long as a few hours... or as little as five minutes. Curious what to expect from the most poisonous creatures in the world? Check out our list below so you can be prepared.

Box jellyfish is listed (or ranked) 1 on the list The 11 Most Poisonous Animals In The World Ranked By How Quickly They Kill You
Photo: MMWI Photographer/Shutterstock

How Quickly You'll Die: Under 5 minutes

Believed to be the most poisonous animal in the sea, the box jellyfish is just about the worst animal you can come across on this list. While most species of box jellyfish aren't actually lethal to humans, the ones that are can take you out in no time. You'll become paralyzed, your heart will stop, and chances are that will all happen while you're underwater. Most of these creatures are found off the coast of Australia.

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Poison dart frog is listed (or ranked) 2 on the list The 11 Most Poisonous Animals In The World Ranked By How Quickly They Kill You
Photo: Dirk Ercken/Shutterstock

How Quickly You'll Die: 5 minutes

This 2-inch frog from South America contains enough poison to kill 10 people. Its toxin is so potent, Colombian tribes have used it to tip their blowgun darts, which is where the name originated. The interesting thing about these guys is they're not naturally poisonous, since those raised away from the jungle never develop toxicity. It's been speculated that they pick up various toxins from plants in their habitat.

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Australian Funnel-Web Spider
Australian Funnel-Web Spider is listed (or ranked) 3 on the list The 11 Most Poisonous Animals In The World Ranked By How Quickly They Kill You
Photo: Ken Griffiths/Shutterstock

How Quickly You'll Die: 5-15 minutes

Like most animals in the world, the nastiest spiders can be found in Australia. The Australian funnel-web spider is responsible for more than a dozen reported deaths, all within 15 minutes of the initial bite. It's widely believed that if the spider bites you in the torso, you're done for. In one reported case, a woman bitten in the neck died within five minutes.

Blue-Ringed Octopus
Blue-ringed octopus is listed (or ranked) 4 on the list The 11 Most Poisonous Animals In The World Ranked By How Quickly They Kill You
Photo: kaschibo/Shutterstock

How Quickly You'll Die: Under 10 minutes

When one of these creatures bites you, you probably won't notice it right away. Within minutes, though, your body will start to go numb and you'll have difficulty breathing. Before you know it, you'll be vomiting before you experience a full respiratory failure. Your heart will keep beating right up until the point it runs out of oxygen. Luckily, some people manage to survive longer than 10 minutes, but even then your only hope is to go on a ventilator before you're completely paralyzed. What makes this creature even more terrifying is it holds enough venom to do damage in bulk - it can kill up to 26 adults at once. So next time you're swimming in the Indian Ocean or the Pacific Ocean - specifically near Australia or Japan - look out for these little guys.

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